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Arctic Air Plunges into the Great Lakes, Northeast and Mid-Atlantic

Arctic air dropping through the northern and eastern U.S. and a storm off the east coast will bring periods of snow, very cold wind chills and hazardous traveling conditions from the Upper Great Lakes to the Northeast. Meanwhile in southern California, Santa Ana winds will decrease but hot, dry air will remain over the area with elevated fire weather conditions. Read More >

Current conditions at

Harrisburg, Capital City Airport (KCXY)

Lat: 40.22°NLon: 76.86°WElev: 335ft.

Fair

22°F

-6°C

Humidity 33%
Wind Speed NW 17 G 30 mph
Barometer 29.67 in (1005.2 mb)
Dewpoint -3°F (-19°C)
Visibility 10.00 mi
Wind Chill8°F (-13°C)
Last update 12 Dec 10:56 pm EST
Extended Forecast for

Mechanicsburg PA

  • Tonight

    Tonight: Mostly clear, with a low around 20. West wind around 16 mph, with gusts as high as 31 mph.

    Mostly Clear

    Low: 20 °F

  • Wednesday

    Wednesday: Increasing clouds, with a high near 28. West wind 14 to 18 mph, with gusts as high as 34 mph.

    Increasing
    Clouds

    High: 28 °F

  • Wednesday
    Night

    Wednesday Night: Snow, mainly after 8pm.  Low around 18. West wind 5 to 7 mph becoming light and variable.  Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Snow

    Low: 18 °F

  • Thursday

    Thursday: Snow before 8am, then a chance of snow showers after 8am.  High near 31. Calm wind becoming west 5 to 7 mph in the afternoon.  Chance of precipitation is 80%.

    Snow then
    Chance Snow
    Showers

    High: 31 °F

  • Thursday
    Night

    Thursday Night: A chance of snow showers before 8pm.  Mostly cloudy, with a low around 19. Light and variable wind.  Chance of precipitation is 30%.

    Chance Snow
    Showers then
    Mostly Cloudy

    Low: 19 °F

  • Friday

    Friday: A chance of snow showers after 8am.  Mostly cloudy, with a high near 32. Chance of precipitation is 30%.

    Chance Snow
    Showers

    High: 32 °F

  • Friday
    Night

    Friday Night: A chance of snow showers before 8pm.  Mostly cloudy, with a low around 22. Chance of precipitation is 30%.

    Chance Snow
    Showers then
    Partly Cloudy

    Low: 22 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 36.

    Mostly Sunny

    High: 36 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 23.

    Partly Cloudy

    Low: 23 °F

Detailed Forecast

Tonight
Mostly clear, with a low around 20. West wind around 16 mph, with gusts as high as 31 mph.
Wednesday
Increasing clouds, with a high near 28. West wind 14 to 18 mph, with gusts as high as 34 mph.
Wednesday Night
Snow, mainly after 8pm. Low around 18. West wind 5 to 7 mph becoming light and variable. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Thursday
Snow before 8am, then a chance of snow showers after 8am. High near 31. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 80%.
Thursday Night
A chance of snow showers before 8pm. Mostly cloudy, with a low around 19. Light and variable wind. Chance of precipitation is 30%.
Friday
A chance of snow showers after 8am. Mostly cloudy, with a high near 32. Chance of precipitation is 30%.
Friday Night
A chance of snow showers before 8pm. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 36.
Saturday Night
Partly cloudy, with a low around 23.
Sunday
Partly sunny, with a high near 42.
Sunday Night
A chance of snow showers. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.
Monday
A chance of snow showers. Partly sunny, with a high near 44. Chance of precipitation is 40%.
Monday Night
Mostly cloudy, with a low around 30.
Tuesday
Mostly sunny, with a high near 43.
Click Map For Forecast
Point Forecast:
Mechanicsburg PA
 40.2°N 77°W (Elev. 476 ft)
10:13 pm EST Dec 12, 2017
11pm EST Dec 12, 2017-6pm EST Dec 19, 2017
 
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