National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Overcast

31°F

-1°C

Humidity 76%
Wind Speed Calm
Barometer 30.46 in (1031.8 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Last update 29 Nov 8:56 pm EST
Extended Forecast for

Lawn PA

  • Tonight

    Tonight: Cloudy, with a low around 30. Light southeast wind increasing to 5 to 10 mph in the evening.

    Low: 30 °F

    Cloudy

  • Sunday

    Sunday: A chance of showers between 10am and 2pm. Cloudy, with a high near 45. South wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 45 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 29. West wind 10 to 14 mph, with gusts as high as 21 mph.

    Low: 29 °F

    Decreasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 40. Northwest wind 6 to 13 mph, with gusts as high as 20 mph.

    High: 40 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of snow after 1am. Mostly cloudy, with a low around 27. Calm wind becoming southeast around 6 mph after midnight. Chance of precipitation is 40%.

    Low: 27 °F

    Mostly Cloudy
    then Chance
    Snow

  • Tuesday

    Tuesday: Snow, possibly mixed with rain. High near 37. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    High: 37 °F

    Rain/Snow

  • Tuesday Night

    Tuesday Night: A chance of rain and snow before 1am. Mostly cloudy, with a low around 23. Chance of precipitation is 30%.

    Low: 23 °F

    Chance
    Rain/Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

Tonight
Cloudy, with a low around 30. Light southeast wind increasing to 5 to 10 mph in the evening.
Sunday
A chance of showers between 10am and 2pm. Cloudy, with a high near 45. South wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 29. West wind 10 to 14 mph, with gusts as high as 21 mph.
Monday
Mostly sunny, with a high near 40. Northwest wind 6 to 13 mph, with gusts as high as 20 mph.
Monday Night
A chance of snow after 1am. Mostly cloudy, with a low around 27. Calm wind becoming southeast around 6 mph after midnight. Chance of precipitation is 40%.
Tuesday
Snow, possibly mixed with rain. High near 37. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Tuesday Night
A chance of rain and snow before 1am. Mostly cloudy, with a low around 23. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 37.
Wednesday Night
Partly cloudy, with a low around 25.
Thursday
Partly sunny, with a high near 38.
Thursday Night
Partly cloudy, with a low around 19.
Friday
Mostly cloudy, with a high near 34.
Friday Night
A chance of snow. Mostly cloudy, with a low around 25. Chance of precipitation is 40%.
Saturday
Mostly cloudy, with a high near 36.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lawn PA
 40.22°N 76.53°W (Elev. 604 ft)
Last Update:
7:05 pm EST Nov 29, 2025
Forecast Valid:
9pm EST Nov 29, 2025-6pm EST Dec 6, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation