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  Mechanicsburg PA - NWS Weather Forecast  -  
Overnight's and Friday's Outlook
Last updated on 10:51 pm EDT Sep 2, 2010
Overnight

Partly Cloudy
Partly
Cloudy
Lo 66 °F 		Partly cloudy, with a low around 66. Light southwest wind.
Friday

Slight Chance Thunderstorms. Chance for Measurable Precipitation 20%
Slight Chc
Tstms
Hi 88 °F 		A slight chance of showers and thunderstorms after 2pm. Partly cloudy, with a high near 88. Calm wind becoming west around 6 mph. Chance of precipitation is 20%.

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Current Conditions ...LIVE...
Measured in Mechanicsburg, PA at Station-ID KPAMECHA5
Updated: @ Sep-03-2010 12:07am - next update at 7:00pm  
Summary / Temperature Wind Rain/Melted Snow Outlook
clear_

Currently 73.1°F, Max: 73.1°F, Min: 73.1°F 73.1°F
Colder 0.1°F than last hour.

---

Feels like: 74°F

24-hr difference
4.3°FWarmer 4.3°F than yesterday at this time.
  Today Yesterday
High: 73.1°F
12:00am 		94.2°F
3:44pm
Low: 73.1°F
12:00am 		61.3°F
7:05am
Records: 102.2°F
1953 		44.6°F
1949
Wind from SE SE
0.1
Gust:
 0.0 mph
0 Bft - Calm
Today: 1.0 12:03am
Gust Month:   11.0   Sep 1
Rain Today: 0.00 in
Rain Rate (/hr): 0.00 in
Rain Yesterday: 0.00 in
Storm Rain: 0.00 in
September: 0.00 in
Season Total:1 27.80 in
9 days since last rain.
Friday
Night
Mostly Cloudy
Mostly
Cloudy
Humidity & Barometer Almanac Moon
Humidity: 79 % Increased 2% since last hour.
Dew Point: 66.2°F Increased 0.7°F since last hour.
Barometer: 29.836 inHg Falling 0.01 °F/hr
Baro Trend: Steady
Sunrise: 6:37am
Sunset: 7:36pm
Moonrise: 12:47am
Moonset: 4:08pm
Waning Crescent
Waning Crescent, Moon at 23 days in cycle
35%
Illuminated
UV Index Forecast UV Index Forecast
3 Sep 2010   High   7.1   
4 Sep 2010   Medium   5.9   
5 Sep 2010   High   6.1   
6 Sep 2010
6.5     High 
Windchill Heating Degree Days Sun
Current: 73.1°F°F
Today: 73.1 °F°F  12:00am
Yesterday: 61.3 °F°F
Last Week: 52.8°F
Record: -6.9°F   Jan-17-2009
Today: 0.0
Sep. to Date: 0.0
2010 to Date: 3276.3
Cooling Degree Days
2010 to Date: 883.3
Hours of Daylight: 12:59
Snow3 Irrigation Index4 Station All Time Records Fire Risk
Today: 0.00 in
Yesterday: 0 in
September: 0 in
Season Total:2 0 in
Snow Depth: 0 in
0 snow day in Sep.
13 snow days in all 2010.
ICN:1 ISS:Ok
Updated at Midnight
7-Days Rain: 0.000 in   
7-Days ET: 0.000 in   
7-Day Index: 0 in 
September Index: 0 in 
Outside Now
Air Density: 1.179 kg/m3
Cloud Height: 2010 ft
HIGHS: LOWS:
107.1°F
Jul-03-1996 		-22.0°F
Jan-21-1994
Record Day(6am-6pm)
    91.6°F on: Aug 24 2008   11.5°F on: Jan 16 2009
Record Nite(6pm-6am)
  83.1°F on: Jul 24 2010 5.0°F on: Jan 17 2009
Current Fire Weather Index
Today:
11.0 of 31
1 Rain season: Jan 1st to Dec 31st.   2 Snow season July 1st to June 30th.   3 Snow manually measured
4 Estimated amount of water needed to replace the water used by plants and evaporation from the past week.
(Negative numbers mean amount of water needed, positive numbers mean excess water is present.)



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