Mechanicsburg PA - NWS Weather Forecast  -   Today's and Tonight's Outlook Last updated on 5:02 am EDT May 22, 2013 Today Chance T-Storms Hi 87 °F A chance of showers and thunderstorms, mainly after 2pm. Patchy fog before 10am. Otherwise, partly sunny, with a high near 87. Southwest wind 3 to 7 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Tonight Chance T-Storms Lo 67 °F A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. South wind around 8 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Click here for Extended Forecast Find the Weather for any City, State  or Zipcode, or Country:

METRIC | IMPERIAL	Updated: 05/22/2013 @ 7:25:00 am
Temperature	Current Conditions	Forecast
Currently Outside: 68.0°F Feels like:  68°F --- High Today 73.3°F 12:00 AM Low Today 65.9°F 5:21 AM Rec* High 86.8°F 2009 Rec* Low 47.9°F 2009 * Records from this Station Since 2008	Current Status: Clear - mist Wind:  S 0.0 Gusting to: 0.0 mph Rain today: 0.00 in	Today Chance T-Storms Hi 87 °F Tonight Chance T-Storms Lo 67 °F Thursday T-Storms Likely Hi 78 °F Click here for full Forecast Chandler Burning Index Currently: -1.7 at 07:25 AM
Dew Point	Liquid Precipitation	Wind	Sun/Moon
Dew Point: 67.7°F In Last Hour: +1.7°F High Dew Point: 69.9°F at 12:20 AM Low Dew Point: 65.1°F at 5:09 AM Record Dew Point: 81.0°F Jul-22-2011 Wetbulb: 67.8°F	Today: 0.00 in Yesterday: 0.00 in Last 7 Days: 0.28 in May Rain: 1.83 in May Avg: 6.43 in Diff from Avg: -4.60 in Rain Season:1 11.05 in Last YTD Rain:1 13.24 in Last Rain Time/Date: 5/20/2013 at 12:20 AM 57 rain days in 2013 11 days in May 2 days since last rain	Currently: S at 0.0 mph Gusting To: 0.0 mph Max Gust: 6.0@  12:37 AM 1Hr Average: Calm Max Gust This Month: 22.0 mph on  May 12 Wind Run: 1.33 miles	Daylight: 14:36:00 +00:01:39 Minutes 91% Illuminated
Humidity		Barometer
Humidity: 99 % In Last Hour: +1% High Today 99% at 6:01 AM Low Today 88% at 12:00 AM		Current: 29.817 inHg In Last Hour: Rising slowly High Today: 29.819 in. at 7:23 AM Low Today: 29.769 in. at 3:45 AM
Cooling Degree Days	Snow3	Heat Index	Air
Today: 1.8 May: 23.7 2013 to Date: 35.6 Heating Degree Days 2013 to Date: 3213.1	Today: 0.00 in Yesterday: 0.00 in May: 0.00 in May Avg: 0.00 in Diff from Avg: 0.00 in Season Total:2 19.05 in Snow Depth: 0.00 in 0 snow day in May 19 snow days this season.2 First Snow of Season: 11/27/2012 Average 1st Snow: 29 of November	Current: 68.0°F Today: 73.3°F  12:00 AM Yesterday: 98.8°F Record: 123.1°F Jul-22-2011	Quality Index6: 63 Density: 1.190 kg/m3
UV Summary/Forecast		Solar Summary
May-22 8.7 May-23 8.4 May-24 7.0		Sunrise is at: 5:46 AM Solar Noon: 13:04 Sunset is at: 8:22 PM
Almanac		Station All Time Records	Cloud Level
Currently: Morning YTD Avg Temp: 42.5°F Sunrise: 5:46 AM Sunset: 8:22 PM Moonrise: 5:44 PM Moonset: 3:48 AM Full Moon: 25 May 2013 New Moon: 15:57 UTC 8 June 2013		HIGHS: LOWS: 107.1°F Jul-3-1996 -22.0°F Jan-21-1994 Daytime Records     91.9°°F 22-Jul-2011   11.5°°F 16-Jan-2009 Nitetime Records   83.1°°F 22-Jul-2011 5.0°°F 17-Jan-2009 ICN:2 | ISS:Ok | CON:4.7 | RCP:96%

1 Rain season: Jan 1st to Dec 31st.    2 Snow season July 1st to June 30th.    3 Snow manually measured usually around 7AM and 7PM.    6 Air Quality Index is provided by EnviroFlash.info RSS Air Quality feed for the Susquehanna Valley, PA area

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