Harrisburg, PA

5:45 PM EDT on May 18, 2013 (GMT -0400)
Elev: 466 ft
Lon: 76.8° W
Lat: 40.3° N
Source
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News
Real-Time Updates: Severe Weather Outbreak
May 18, 2013
The latest breaking news, tornado warnings, photos and more.
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May 18, 2013
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Flash Flooding Swamps Parts of Alabama
May 18, 2013
The photos, reports, and perspective behind flooding rain in parts of Alabama Saturday.
Active Volcano Captured in Stunning Photos
May 17, 2013
Indonesian-born and Qatar-based photographer Helminadia Ranford captured breathtaking photos of Mt. Bromo, an active volcano in East Java, Indonesia.
NASA: New Pump Resolves Big Space Station Leak
May 17, 2013
A spacewalk has repaired a leak on the International Space Station, NASA said.
Record Snow: Where Winter Won't End
May 18, 2013
Spring warmth has arrived in most of the U.S., except this state.
Storm Damage near Shreveport
May 16, 2013
Storm storms leave damage near Shreveport, Louisiana. See photos and tweets.
Texas Tornadoes: As They Happened
May 18, 2013
We walk through the full timeline of the Texas tornadoes on May 15, 2013.
By Man or Nature, Places That Will Never Be the Same
May 16, 2013
Where Earth has been changed forever.
Smaller Glaciers Boost Sea Level as Much as the Giants
May 16, 2013
Thousands of small glaciers, unconnected to continental-scale ice sheets, have dumped about 260 million tons of meltwater into the ocean annually between 2003 and 2009.
Deadly Texas Outbreak May Mark End of Tornado Drought
May 16, 2013
After months with record-low activity, the 2013 tornado season roared back with a vengeance on Wednesday as at least 10 twisters touched down across portions of north-central Texas, killing at least 6 and injuring dozens more.
Alaska Volcano Shoots Ash 15,000 Feet into Air
May 18, 2013
Steam and ash clouds are occasionally rising to 20,000 feet from an active Alaska volcano.
Mexico Volcano Registers More Seismic Activity
May 16, 2013
Seismic activity is continuing at the Popocatepetl volcano near Mexico City and authorities say they have readied shelters and identified evacuation routes in case they should be needed.
Cyclone Mahasen Weakens After Killing 45 in Bangladesh
May 16, 2013
Cyclone Mahasan weakened Thursday afternoon into a tropical storm and then dissipated, causing far less damage than had been feared as it passed over Bangladesh and spared Myanmar almost entirely, meteorological officials said.
Worldwide Cleanup Reveals Trashed Beaches (PHOTOS)
May 17, 2013
The Ocean Conservancy releases stunning photos from its recent international beach cleanup day.
Oldest Water on Earth Found Deep Underground
May 17, 2013
Finding the oldest water on Earth has implications for understanding life on Earth and maybe Mars.
Tornado-Ravaged Texas Town to Start Recovery
May 18, 2013
It's now time to move on in a Texas town wrecked by a massive twister.
Study: 97% Agreement on Manmade Global Warming
May 16, 2013
The scientific agreement that climate change is happening, and that it's caused by human activity, is significant and growing, according to a new study published Thursday.
Social Media Reacts as Deadly Severe Weather Pelts Texas
May 16, 2013
Severe weather broke out in northeastern Texas, including the Dallas Fort Worth area. Below are reports of hail and tornadoes from throughout social media.
Kepler's Alien-Hunting Days May be Numbered
May 15, 2013
NASA's planet-hunting Kepler telescope is broken, possibly jeopardizing searches for life outside the Milky Way.
More News Articles
Weather Summary
Kari Kiefer
Weather Underground midday recap for Saturday, May 18, 2013.

Multiple areas of unsettled weather developed over the nation on Saturday. In the center of the nation, a broad low pressure system moved off the Rockies and into the Central and Northern Plains. This system created a warm front that developed over the Northern Plains and Upper Midwest, which stretched eastward into the Great Lakes. Scattered showers and thunderstorms developed along and ahead of this frontal boundary with some parts of Minnesota reporting over 2 inches of rain by mid-day Saturday. These storms have not yet turned severe, but have a history of producing strong winds, large hail, and even a few tornadoes. The back side of this broad low pressure system continued to pull a cold front across the Western states. This allowed for onshore flow to persist from the Pacific Ocean, maintaining sufficient moisture to kick up scattered showers across the Intermountain West, Rocky Mountains, and Great Basin. Some snow showers developed at the highest elevations of Wyoming and Montana. As moisture and energy from this front moved off the Rockies and into the Central and Northern Plains, threats of severe thunderstorm development increased. There was a moderate risk for severe storms with large hail, strong winds, and tornadoes from eastern Colorado through western Nebraska and Kansas, but severe storms have not yet developed.

Meanwhile in the East, a trough of low pressure slowly moved offshore and allowed for more showers and thunderstorms to persist for the Eastern Valleys, the Central and Southern Appalachians, and the Mid-Atlantic States. Severe storms were not anticipated in these areas.
Weather Underground midday recap for Saturday, May 18, 2013.

Multiple areas of unsettled weather developed over the nation on Saturday. In the center of the nation, a broad low pressure system moved off the Rockies and into the Central and Northern Plains. This system created a warm front that developed over the Northern Plains and Upper Midwest, which stretched eastward into the Great Lakes. Scattered showers and thunderstorms developed along and ahead of this frontal boundary with some parts of Minnesota reporting over 2 inches of rain by mid-day Saturday. These storms have not yet turned severe, but have a history of producing strong winds, large hail, and even a few tornadoes. The back side of this broad low pressure system continued to pull a cold front across the Western states. This allowed for onshore flow to persist from the Pacific Ocean, maintaining sufficient moisture to kick up scattered showers across the Intermountain West, Rocky Mountains, and Great Basin. Some snow showers developed at the highest elevations of Wyoming and Montana. As moisture and energy from this front moved off the Rockies and into the Central and Northern Plains, threats of severe thunderstorm development increased. There was a moderate risk for severe storms with large hail, strong winds, and tornadoes from eastern Colorado through western Nebraska and Kansas, but severe storms have not yet developed.

Meanwhile in the East, a trough of low pressure slowly moved offshore and allowed for more showers and thunderstorms to persist for the Eastern Valleys, the Central and Southern Appalachians, and the Mid-Atlantic States. Severe storms were not anticipated in these areas.
More News Articles

Harrisburg Weather at a Glance

Updated 5:45 PM EDT
Elevation
604 ft
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Now
Overcast
Overcast
Temperature
63.9 °F
Feels Like 63.9 °F
Wind(mph)
2.0
Sunrise / Set
5:48 AM
8:19 PM
Moon
First Quarter
Tonight
Rain 55 °F
Rain
60% chance of precipitation
Tomorrow
Rain 68 °F
Rain
40% chance of precipitation
Tomorrow Night
Chance of Rain 61 °F
Chance of Rain
40% chance of precipitation
Monday
Chance of a Thunderstorm 75 | 66 °F
Chance of T-storms
40% chance of precipitation
Tuesday
Chance of a Thunderstorm 84 | 64 °F
Chance of T-storms
50% chance of precipitation
Wednesday
Chance of a Thunderstorm 88 | 63 °F
Chance of T-storms
50% chance of precipitation
Tomorrow is forecast to be nearly the same temperature as today.
Conditions
Pressure
30.21 in
Visibility
1.8 miles
Clouds
Overcast 3500 ft
Moisture
Humidity
74%
Rainfall
-
Not available.
Snow Depth
Not available.
METAR
SPECI KMDT 182136Z 18006KT 1 3/4SM +RA OVC035 17/12 A3021 RMK AO2 TWR VIS 3 RAB30 P0004
Don't speak METAR? Read our FAQ.
Weather Radio
Launch Weather Radio
Temperature
Temperature
63.9 °F
60,59,60,61,63,65,67,68,68,68,67,66,66
Dew Point
58 °F
Wind
Speed / Dir
2.0 mph from SSE
Wind Gust
5.0 mph
Health
UV
1 out of 16
Pollen
6.30 out of 12
Pollen Forecast
Ozone
Good
PM2.5
Good
Flu Activity
Sporadic
View Flu Map
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Source: BestForecast
Descriptive Forecast
Saturday Night
nt_rain Overcast with a chance of rain, then rain after midnight. Fog overnight. Low of 55F. Winds from the SE at 5 to 10 mph. Chance of rain 60%.
Sunday
rain Overcast with a chance of rain. High of 68F. Winds from the ESE at 5 to 10 mph. Chance of rain 40%.
Sunday Night
nt_chancerain Overcast with a chance of rain. Low of 61F. Winds from the SE at 5 to 10 mph. Chance of rain 40%.
Monday
chancetstorms Overcast with a chance of a thunderstorm and a chance of rain. High of 75F. Winds less than 5 mph. Chance of rain 40%.
Monday Night
nt_mostlycloudy Mostly cloudy with a chance of a thunderstorm and rain in the evening, then overcast. Fog overnight. Low of 66F. Winds less than 5 mph. Chance of rain 20%.
Tuesday
chancetstorms Overcast with a chance of a thunderstorm and rain. High of 84F. Winds less than 5 mph. Chance of rain 50%.
Tuesday Night
nt_chancetstorms Overcast with a chance of a thunderstorm and rain. Low of 64F. Winds less than 5 mph. Chance of rain 60% with rainfall amounts near 0.3 in. possible.
Wednesday
chancetstorms Overcast with a chance of a thunderstorm and rain. High of 88F. Winds from the SE at 5 to 10 mph. Chance of rain 50%.
Wednesday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 63F. Winds less than 5 mph. Chance of rain 70% with rainfall amounts near 0.6 in. possible.
Thursday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 77F. Winds from the SW at 5 to 10 mph. Chance of rain 60%.
Thursday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Fog overnight. Low of 59F. Winds from the South at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.3 in. possible.
Friday
chancetstorms Mostly cloudy with a chance of a thunderstorm. Fog early. High of 75F. Winds from the SW at 10 to 15 mph. Chance of rain 60%.
Friday Night
nt_clear Clear with a chance of rain. Low of 48F. Winds from the NW at 5 to 10 mph. Chance of rain 20%.
Saturday
chancerain Clear with a chance of rain. High of 73F. Winds from the NNE at 5 to 10 mph. Chance of rain 60% with rainfall amounts near 0.2 in. possible.
Saturday Night
nt_chancerain Partly cloudy with a chance of rain. Low of 54F. Winds less than 5 mph. Chance of rain 40%.
Sunday
clear Clear. High of 68F. Winds less than 5 mph.
Sunday Night
nt_clear Clear. Low of 50F. Winds less than 5 mph.
Monday
clear Clear. High of 70F. Winds less than 5 mph.
Monday Night
nt_clear Clear. Low of 52F. Winds less than 5 mph.
Tuesday
clear Clear. High of 72F. Winds less than 5 mph.
Tuesday Night
nt_clear Clear. Low of 55F. Winds less than 5 mph.
Wednesday
partlycloudy Clear. High of 75F. Winds less than 5 mph.
Wednesday Night
nt_clear Clear. Low of 55F. Winds less than 5 mph.
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Weather Forecast for Harrisburg PA

View Calendar 10-Day Forecast for station KPAHARRI19

Saturday, 18
Chance of Rain
70 | 55 °F
Chance of Rain
Chance of
Precipitation
20%
Sunday, 19
Rain
68 | 61 °F
Rain
Chance of
Precipitation
40%
Monday, 20
Chance of a Thunderstorm
75 | 66 °F
Chance of T-storms
Chance of
Precipitation
40%
Tuesday, 21
Chance of a Thunderstorm
84 | 64 °F
Chance of T-storms
Chance of
Precipitation
50%
Wednesday, 22
Chance of a Thunderstorm
88 | 63 °F
Chance of T-storms
Chance of
Precipitation
50%
Thursday, 23
Chance of a Thunderstorm
77 | 59 °F
Chance of T-storms
Chance of
Precipitation
60%
Friday, 24
Chance of a Thunderstorm
75 | 48 °F
Chance of T-storms
Chance of
Precipitation
60%
Saturday, 25
Chance of Rain
73 | 54 °F
Chance of Rain
Chance of
Precipitation
60%
Sunday, 26
Clear
68 | 50 °F
Clear
Chance of
Precipitation
0%
Monday, 27
Clear
70 | 52 °F
Clear
Chance of
Precipitation
0%
Source: BestForecast at 5:41 PM EDT on May 18, 2013
Descriptive Forecast
Saturday Night
nt_rain Overcast with a chance of rain, then rain after midnight. Fog overnight. Low of 55F. Winds from the SE at 5 to 10 mph. Chance of rain 60%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 47 67 | 49 66 | 53 58 | 54
Wind 3 mph East 6 mph SE 7 mph SSE 5 mph SE
Humidity 69% 52% 60% 81%
Chance of Precip. 20% 10% 20% 50%
Cloud Cover 91% 76% 93% 100%
Conditions Chance of Rain Mostly Cloudy Chance of Rain Chance of Rain
Sunrise & Sunset
5:48 AM
8:19 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.70], Average RMSE [1.93]
The National Weather Service forecast quality is good. MaxT RMSE [1.66], Average RMSE [1.47] : Use NWS
Source: BestForecast at 5:41 PM EDT on May 18, 2013
Descriptive Forecast
Sunday
rain Overcast with a chance of rain. High of 68F. Winds from the ESE at 5 to 10 mph. Chance of rain 40%.
Sunday Night
nt_chancerain Overcast with a chance of rain. Low of 61F. Winds from the SE at 5 to 10 mph. Chance of rain 40%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 55 | 54 61 | 56 65 | 58 63 | 58
Wind 6 mph ESE 7 mph ESE 9 mph SE 6 mph SE
Humidity 94% 84% 77% 86%
Chance of Precip. 60% 50% 40% 40%
Cloud Cover 100% 100% 100% 100%
Conditions Rain Chance of Rain Chance of Rain Chance of Rain
Sunrise & Sunset
5:47 AM
8:20 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.70], Average RMSE [1.71]
The National Weather Service forecast quality is good. MaxT RMSE [1.60], Average RMSE [1.63] : Use NWS
Source: BestForecast at 5:41 PM EDT on May 18, 2013
Descriptive Forecast
Monday
chancetstorms Overcast with a chance of a thunderstorm and a chance of rain. High of 75F. Winds less than 5 mph. Chance of rain 40%.
Monday Night
nt_mostlycloudy Mostly cloudy with a chance of a thunderstorm and rain in the evening, then overcast. Fog overnight. Low of 66F. Winds less than 5 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 62 | 59 70 | 61 73 | 63 66 | 65
Wind 3 mph SE 2 mph SE 5 mph South 5 mph South
Humidity 90% 69% 67% 96%
Chance of Precip. 40% 40% 40% 20%
Cloud Cover 100% 96% 96% 76%
Conditions Chance of Rain Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:46 AM
8:21 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [2.43], Average RMSE [1.35]
The National Weather Service forecast quality is good. MaxT RMSE [2.19], Average RMSE [1.95] : Use NWS
Source: BestForecast at 5:41 PM EDT on May 18, 2013
Descriptive Forecast
Tuesday
chancetstorms Overcast with a chance of a thunderstorm and rain. High of 84F. Winds less than 5 mph. Chance of rain 50%.
Tuesday Night
nt_chancetstorms Overcast with a chance of a thunderstorm and rain. Low of 64F. Winds less than 5 mph. Chance of rain 60% with rainfall amounts near 0.3 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 67 | 65 78 | 72 80 | 71 71 | 64
Wind 4 mph SW 4 mph West 2 mph West 2 mph South
Humidity 90% 84% 73% 81%
Chance of Precip. 0% 20% 30% 30%
Cloud Cover 100% 52% 76% 99%
Conditions Overcast Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:45 AM
8:22 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.85], Average RMSE [2.87]
The National Weather Service forecast quality is fair. MaxT RMSE [2.74], Average RMSE [2.07] : Use NWS
Source: BestForecast at 5:41 PM EDT on May 18, 2013
Descriptive Forecast
Wednesday
chancetstorms Overcast with a chance of a thunderstorm and rain. High of 88F. Winds from the SE at 5 to 10 mph. Chance of rain 50%.
Wednesday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Fog overnight. Low of 63F. Winds less than 5 mph. Chance of rain 70% with rainfall amounts near 0.6 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 69 | 65 79 | 67 79 | 70 69 | 67
Wind 6 mph ESE 9 mph SE 7 mph SSE 5 mph SSE
Humidity 88% 68% 74% 96%
Chance of Precip. 20% 20% 10% 30%
Cloud Cover 92% 99% 99% 52%
Conditions Chance of a Thunderstorm Chance of a Thunderstorm Overcast Chance of a Thunderstorm
Sunrise & Sunset
5:45 AM
8:23 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.16], Average RMSE [2.33]
The National Weather Service forecast quality is fair. MaxT RMSE [2.91], Average RMSE [2.09] : Use NWS
Source: BestForecast at 5:41 PM EDT on May 18, 2013
Descriptive Forecast
Thursday
chancetstorms Mostly cloudy with a chance of a thunderstorm. High of 77F. Winds from the SW at 5 to 10 mph. Chance of rain 60%.
Thursday Night
nt_chancetstorms Mostly cloudy with a chance of a thunderstorm. Fog overnight. Low of 59F. Winds from the South at 5 to 10 mph. Chance of rain 70% with rainfall amounts near 0.3 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 66 | 65 74 | 71 73 | 71 64 | 64
Wind 3 mph SW 5 mph WSW 6 mph SSW 7 mph SSE
Humidity 93% 84% 91% 100%
Chance of Precip. 30% 20% 30% 30%
Cloud Cover 39% 30% 100% 94%
Conditions Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:44 AM
8:24 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.83], Average RMSE [2.47]
The National Weather Service forecast quality is fair. MaxT RMSE [2.84], Average RMSE [2.21] : Use NWS
Source: BestForecast at 5:41 PM EDT on May 18, 2013
Descriptive Forecast
Friday
chancetstorms Mostly cloudy with a chance of a thunderstorm. Fog early. High of 75F. Winds from the SW at 10 to 15 mph. Chance of rain 60%.
Friday Night
nt_clear Clear with a chance of rain. Low of 48F. Winds from the NW at 5 to 10 mph. Chance of rain 20%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 70 | 64 67 | 65 71 | 64 60 | 55
Wind 5 mph SSW 11 mph SW 7 mph West 7 mph NNW
Humidity 83% 95% 79% 85%
Chance of Precip. 30% 20% 30% 10%
Cloud Cover 95% 91% 81% 0%
Conditions Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Clear
Sunrise & Sunset
5:43 AM
8:24 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.00], Average RMSE [3.25]
The National Weather Service forecast quality is fair. MaxT RMSE [2.90], Average RMSE [2.51] : Use NWS
Source: BestForecast at 5:41 PM EDT on May 18, 2013
Descriptive Forecast
Saturday
chancerain Clear with a chance of rain. High of 73F. Winds from the NNE at 5 to 10 mph. Chance of rain 60% with rainfall amounts near 0.2 in. possible.
Saturday Night
nt_chancerain Partly cloudy with a chance of rain. Low of 54F. Winds less than 5 mph. Chance of rain 40%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 53 | 51 62 | 54 69 | 56 57 | 53
Wind 6 mph NNW 8 mph NNE 2 mph NE 1 mph South
Humidity 90% 76% 67% 86%
Chance of Precip. 20% 30% 20% 20%
Cloud Cover 0% 0% 0% 86%
Conditions Chance of Rain Chance of Rain Chance of Rain Chance of Rain
Sunrise & Sunset
5:43 AM
8:25 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [3.96], Average RMSE [3.56]
Source: BestForecast at 5:41 PM EDT on May 18, 2013
Descriptive Forecast
Sunday
clear Clear. High of 68F. Winds less than 5 mph.
Sunday Night
nt_clear Clear. Low of 50F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 47 64 | 54 66 | 52 55 | 49
Wind 1 mph NNE 5 mph NNE 4 mph NE 3 mph NE
Humidity 73% 67% 60% 79%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 13% 6% 4% 4%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:42 AM
8:26 PM
The quality of the forecasted high temperature for this day is poor. MaxT RMSE [4.82], Average RMSE [3.83]
Source: BestForecast at 5:41 PM EDT on May 18, 2013
Descriptive Forecast
Monday
clear Clear. High of 70F. Winds less than 5 mph.
Monday Night
nt_clear Clear. Low of 52F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 53 | 44 65 | 44 66 | 46 56 | 44
Wind 3 mph NE 3 mph ENE 3 mph East 2 mph SE
Humidity 68% 45% 48% 66%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 7% 7% 3% 1%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:41 AM
8:27 PM
Source: BestForecast at 5:41 PM EDT on May 18, 2013
Descriptive Forecast
Tuesday
clear Clear. High of 72F. Winds less than 5 mph.
Tuesday Night
nt_clear Clear. Low of 55F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 56 | 40 67 | 42 70 | 45 59 | 48
Wind 1 mph ESE 2 mph SE 3 mph SSE 3 mph South
Humidity 55% 39% 42% 69%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 1% 1% 1% 13%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
Sun does not rise
Source: BestForecast at 5:41 PM EDT on May 18, 2013
Descriptive Forecast
Wednesday
partlycloudy Clear. High of 75F. Winds less than 5 mph.
Wednesday Night
nt_clear Clear. Low of 55F. Winds less than 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 60 | 51 71 | 54 73 | 58 60 | 58
Wind 2 mph SSW 2 mph SSW 3 mph SSW 5 mph SE
Humidity 71% 55% 60% 95%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 37% % % %
Conditions Partly Cloudy Clear Clear Clear
Sunrise & Sunset
Sun does not rise
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
May 18, 2013 Max Temp Min Temp
Normal (KMDT) 73 °F 53 °F
Record (KMDT) 94 °F (1962) 36 °F (1973)
Yesterday 75 °F 52 °F
Yesterday's Heating Degree Days: 1
Choose a date
Earthquake Activity
City Distance Mag. Time & Date
No recent earthquake activity has been reported nearby.
Minimum magnitude displayed is 2.5.
More information at USGS.gov
Air Quality
  Air Quality AQ Index Pollutant
Yesterday Good
OZONE
Yesterday Good
PM2.5
Current Good
PM2.5
Current Good
OZONE
Saturday Moderate
PM2.5
Saturday Good
OZONE
Sunday Moderate
PM2.5
Sunday Good
OZONE
Monday Moderate
PM2.5
Monday Good
OZONE
Tuesday Moderate
PM2.5
Tuesday Good
OZONE
Astronomy
May. 18, 2013 Rise Set
Actual Time 5:48 AM EDT 8:19 PM EDT
Civil Twilight 5:17 AM EDT 8:50 PM EDT
Nautical Twilight 4:38 AM EDT 9:29 PM EDT
Astronomical Twilight 3:55 AM EDT 10:13 PM EDT
Moon 1:19 PM EDT 1:40 AM EDT
Length Of Visible Light 15h 33m
Length of Day
14h 31m
Tomorrow will be 1m 44s longer.
First Quarter, 57% of the Moon is Illuminated
Today
First Quarter
May 25
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
Visit Astronomy
Today's Extremes
State Highs State Lows
82 °F
Beaver Falls
82 °F
New Castle
81 °F
Pittsburgh
80 °F
Butler
80 °F
Franklin
43 °F
Mt. Pocono
48 °F
Washington
50 °F
New Castle
50 °F
Quakertown
51 °F
Doylestown
Record Extremes
Snow Depth
Station Depth Elevation
No new snow has been reported.
Snow Depth Reports — Snow Depth Map
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Travel Planning
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Aviation
City Temp. Conditions Updated
Middletown 63 °F Heavy Rain 5:36 PM EDT
Fort Indiantown Gap 67 °F Overcast 4:58 PM EDT
York 63 °F Overcast 5:14 PM EDT
Harrisburg 66 °F Overcast 4:56 PM EDT
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Flight To ETA Status
LOF3334
Washington, DC 		KMDT 05:58PM On Time
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Type Condition
Flight Rule: IFR (KMDT)
Wind Speed: 6.0 kts.
Wind Dir: 151° (SSE)
Ceiling: 3500 ft

SPECI KMDT 182136Z 18006KT 1 3/4SM +RA OVC035 17/12 A3021 RMK AO2 TWR VIS 3 RAB30 P0004

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Nearby Events
Event Date Forecast
Celebrate Recovery Coming to Palmyra 6:00 PM EDT
2013-04-15		 Overcast, 62°F
Celebrate Recovery 6:00 PM EDT
2013-04-15		 Overcast, 62°F
Scottish Rite Spring Reunion-Harrisburg 4:00 PM EDT
2013-04-15		 Rain Showers, 64°F
Young Cancer Survivor Group 7:00 PM EDT
2013-04-16		 Chance of Rain, 67°F
Homeschool Physical Education Course 10:00 AM EDT
2013-04-16		 Chance of Rain, 58°F
Big Brothers Big Sisters Infoormation Session 6:00 PM EDT
2013-04-16		 Chance of Rain, 70°F
Event data courtesy eviesays.com
Sports
Event Date Forecast
Mariners vs. Indians 1:05 PM EDT on May 18, 2013 Mostly Cloudy, 61 °F
Blue Jays vs. Yankees 1:05 PM EDT on May 18, 2013 Chance of Rain, 70 °F
Event Date Forecast
Real Sporting de Gijón vs. Xerez 6:00 PM CEST on May 18, 2013 Clear, High 69° F/ 21° C
Alcorcón vs. Barcelona B 6:00 PM CEST on May 18, 2013 Chance of Rain, High 66° F/ 19° C
Event Date Forecast
Sprint Showdown 7:46 PM EDT on May 18, 2013 Thunderstorm, 74 °F
NASCAR Sprint All-Star Race 9:00 PM EDT on May 18, 2013 Thunderstorm, 74 °F
Event Date Forecast
HP Byron Nelson Championship 8:30 AM CDT on May 19, 2013 Partly Cloudy, 72 °F
Crowne Plaza Invitational at Colonial 8:30 AM CDT on May 23, 2013 Partly Cloudy, 70 °F
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Weather Stations
Station Location Temp. Dew Point Humidity Wind Precipitation Elevation Updated Type Website
Linglestown, Harrisburg, PA 67.3 °F 53 °F 61% SSE  at  1.7 mph - / hr 531 ft 4:09 PM EDT Normal  
Singer's Creations, Harrisburg, PA 63.9 °F 58 °F 74% SSE  at  2.0 mph 0.00 in / hr 604 ft 5:45 PM EDT Rapid Fire
Colonial Park, Harrisburg, PA 66.8 °F 54 °F 63% North  at  0.0 mph 0.00 in / hr 522 ft 5:45 PM EDT Rapid Fire
2 Mile SE of Paxtonia, Harrisburg, PA 65.3 °F 55 °F 69% ESE  at  1.0 mph 0.00 in / hr 469 ft 5:45 PM EDT Normal  
Apple Tree Farms, Harrisburg, PA 66.4 °F 66 °F 98% SSW  at  0.0 mph - / hr 472 ft 5:41 PM EDT Normal  
Deer Path Woods, Harrisburg, PA 67.3 °F 53 °F 61% SW  at  1.1 mph - / hr 440 ft 5:37 PM EDT Normal  
Scott's Weather, Harrisburg, PA 64.8 °F 56 °F 74% South  at  1.0 mph 0.00 in / hr 465 ft 5:45 PM EDT Normal  
APRSWXNET Harrisburg P, Grantville, PA 65 °F 56 °F 72% North  at  0 mph 0.00 in / hr 498 ft 5:00 PM EDT MADIS
Bellevue Park, Harrisburg, PA 64.8 °F 54 °F 68% South  at  3.8 mph 0.00 in / hr 498 ft 5:45 PM EDT Rapid Fire  
Grantville, PA 64.4 °F 57 °F 77% SE  at  0.0 mph 0.00 in / hr 482 ft 5:43 PM EDT Normal  
DTPD, Hershey, PA 65.3 °F 56 °F 73% North  at  4.0 mph 0.00 in / hr 348 ft 5:45 PM EDT Rapid Fire  
APRSWXNET New Cumberland P, New Cumberland, PA 65 °F 53 °F 66% South  at  2 mph 0.00 in / hr 426 ft 5:02 PM EDT MADIS
Peach Ave, Hershey, PA 64.9 °F 61 °F 87% SE  at  4.3 mph 0.00 in / hr 460 ft 5:45 PM EDT Rapid Fire  
Carsonville, Halifax, PA 65.6 °F 52 °F 62% NW  at  2.0 mph 0.00 in / hr 755 ft 5:30 PM EDT Normal  
Fairview Park, New Cumberland, PA 58.7 °F 56 °F 89% SE  at  0.0 mph 0.13 in / hr 705 ft 5:40 PM EDT Normal  
Olde Orchard Hill, New Cumberland, PA 60.4 °F 54 °F 81% South  at  6.8 mph - / hr 623 ft 5:30 PM EDT Normal  
Enders/Fisherville, Halifax, PA 66.3 °F 55 °F 68% SSE  at  0.0 mph 0.00 in / hr 571 ft 5:45 PM EDT Rapid Fire  
Etters, Etters, PA 64.2 °F 53 °F 67% South  at  0.0 mph 0.00 in / hr 490 ft 5:44 PM EDT Normal  
HR 911, Palmyra, PA 63.7 °F 56 °F 77% NE  at  0.0 mph 0.00 in / hr 485 ft 5:32 PM EDT Normal
DaleHWeatherStation17020, Duncannon, PA 67.1 °F 57 °F 69% WSW  at  0.0 mph 0.00 in / hr 351 ft 5:45 PM EDT Rapid Fire  
Dane's House, Palmyra, PA 63.7 °F 55 °F 74% SE  at  5.0 mph 0.00 in / hr 485 ft 5:45 PM EDT Rapid Fire
Watts Township, Duncannon, PA 65.7 °F 54 °F 66% South  at  1.0 mph 0.00 in / hr 597 ft 5:41 PM EDT Normal  
The Raspberry Patch, Just E of Campbelltown, PA 62.6 °F 57 °F 81% East  at  1.0 mph 0.00 in / hr 525 ft 5:45 PM EDT Rapid Fire  
Mechanicsburg, PA 59.6 °F 55 °F 86% ESE  at  4.6 mph 0.00 in / hr 439 ft 5:45 PM EDT Rapid Fire
Upper Lawn, Palmyra, PA 64.4 °F 53 °F 67% SSW  at  1.1 mph 0.00 in / hr 425 ft 5:45 PM EDT Rapid Fire  
MechanicsburgWeather.com, Mechanicsburg, PA 60.0 °F 57 °F 89% ENE  at  4.6 mph 0.04 in / hr 430 ft 5:45 PM EDT Rapid Fire
Elizabethtown, Conoy -Stevens Hill, Elizabethtown, PA 63.9 °F 55 °F 73% South  at  2.2 mph - / hr 0 ft 5:35 PM EDT Normal  
Clymer Homestead, Mechanicsburg, PA 66.6 °F 56 °F 70% SSW  at  4.2 mph - / hr 492 ft 5:01 PM EDT Normal  
APRSWXNET Middlesex PA , Shermans Dale, PA 66 °F 53 °F 62% East  at  4 mph 0.00 in / hr 485 ft 5:15 PM EDT MADIS
Earth Station 1 - Carroll Township, Shermans Dale, PA 62.5 °F 55 °F 77% SE  at  8.0 mph 0.00 in / hr 620 ft 5:45 PM EDT Rapid Fire  
Silver Springs Township, Mechanicsburg, PA 60.3 °F 56 °F 85% East  at  1.6 mph 0.06 in / hr 462 ft 5:45 PM EDT Rapid Fire  
Ridgetop above Mt. Gretna, Lebanon, PA 60.4 °F 57 °F 88% East  at  2.3 mph 0.01 in / hr 899 ft 5:45 PM EDT Rapid Fire  
Swatara Twp, Jonestown, PA 63.9 °F 54 °F 69% NW  at  3.0 mph 0.00 in / hr 536 ft 5:43 PM EDT Normal
WA3USG-MONROE, Mechanicsburg, PA 59.5 °F 57 °F 92% SE  at  0.0 mph 0.12 in / hr 535 ft 5:41 PM EDT Normal  
APRSWXNET York Haven PA , Manchester, PA 66 °F 55 °F 67% SSE  at  5 mph 0.00 in / hr 285 ft 5:03 PM EDT MADIS
Brunner Island, York Haven, PA 65.6 °F 54 °F 67% SSE  at  11.0 mph - / hr 288 ft 5:28 PM EDT Normal  
APRSWXNET Lebanon PA , Lebanon, PA 63 °F 56 °F 79% SSE  at  1 mph 0.00 in / hr 462 ft 5:17 PM EDT MADIS
Turtle Rock Airport, Shermans Dale, PA 61.4 °F 54 °F 78% SSE  at  9.0 mph 0.00 in / hr 620 ft 5:44 PM EDT Normal  
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