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

29°F

-2°C

Humidity 38%
Wind Speed S 12 G 17 mph
Barometer 30.07 in (1018.6 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 9 Dec 2:56 pm EST
Extended Forecast for

Lawn PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 26. South wind 8 to 10 mph.

    Low: 26 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Rain, snow, and freezing rain likely, becoming all rain after 11am. Cloudy, with a high near 40. Southwest wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. Little or no ice accumulation expected. Little or no snow accumulation expected.

    High: 40 °F

    Wintry Mix
    Likely then
    Rain Likely

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 28. Southwest wind 11 to 15 mph, with gusts as high as 25 mph.

    Low: 28 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 34. West wind 15 to 17 mph, with gusts as high as 33 mph.

    High: 34 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 24. West wind 11 to 15 mph, with gusts as high as 21 mph.

    Low: 24 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of snow. Partly sunny, with a high near 35. Chance of precipitation is 20%.

    High: 35 °F

    Slight Chance
    Snow

  • Friday Night

    Friday Night: A chance of snow. Mostly cloudy, with a low around 24. Chance of precipitation is 40%.

    Low: 24 °F

    Chance Snow

  • Saturday

    Saturday: Mostly cloudy, with a high near 38.

    High: 38 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 40%.

    Low: 26 °F

    Chance Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 26. South wind 8 to 10 mph.
Wednesday
Rain, snow, and freezing rain likely, becoming all rain after 11am. Cloudy, with a high near 40. Southwest wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. Little or no ice accumulation expected. Little or no snow accumulation expected.
Wednesday Night
Mostly cloudy, with a low around 28. Southwest wind 11 to 15 mph, with gusts as high as 25 mph.
Thursday
Mostly sunny, with a high near 34. West wind 15 to 17 mph, with gusts as high as 33 mph.
Thursday Night
Partly cloudy, with a low around 24. West wind 11 to 15 mph, with gusts as high as 21 mph.
Friday
A slight chance of snow. Partly sunny, with a high near 35. Chance of precipitation is 20%.
Friday Night
A chance of snow. Mostly cloudy, with a low around 24. Chance of precipitation is 40%.
Saturday
Mostly cloudy, with a high near 38.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 40%.
Sunday
Partly sunny, with a high near 32.
Sunday Night
Partly cloudy, with a low around 15.
Monday
Mostly sunny, with a high near 29.
Monday Night
Mostly cloudy, with a low around 18.
Tuesday
Partly sunny, with a high near 33.
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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:
2:21 pm EST Dec 9, 2025
Forecast Valid:
3pm EST Dec 9, 2025-6pm EST Dec 16, 2025
 
Forecast Discussion
 
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Additional Resources

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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