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 47%
Wind Speed S 9 mph
Barometer 30.01 in (1016.7 mb)
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 9 Dec 5:56 pm EST
Extended Forecast for

Harrisburg International Airport PA

  • Tonight

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

    Low: 26 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Freezing rain likely before 9am, then rain likely. Cloudy, with a high near 41. Southwest wind 10 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. Little or no ice accumulation expected.

    High: 41 °F

    Rain/Freezing
    Rain Likely
    then Rain
    Likely

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 29. Southwest wind 10 to 13 mph becoming west after midnight. Winds could gust as high as 24 mph.

    Low: 29 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 34. West wind 14 to 16 mph, with gusts as high as 31 mph.

    High: 34 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 25. West wind 10 to 13 mph, with gusts as high as 20 mph.

    Low: 25 °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 before 1am. Mostly cloudy, with a low around 25. Chance of precipitation is 40%.

    Low: 25 °F

    Chance Snow

  • Saturday

    Saturday: Mostly cloudy, with a high near 39.

    High: 39 °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 around 10 mph.
Wednesday
Freezing rain likely before 9am, then rain likely. Cloudy, with a high near 41. Southwest wind 10 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. Little or no ice accumulation expected.
Wednesday Night
Mostly cloudy, with a low around 29. Southwest wind 10 to 13 mph becoming west after midnight. Winds could gust as high as 24 mph.
Thursday
Mostly sunny, with a high near 34. West wind 14 to 16 mph, with gusts as high as 31 mph.
Thursday Night
Partly cloudy, with a low around 25. West wind 10 to 13 mph, with gusts as high as 20 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 before 1am. Mostly cloudy, with a low around 25. Chance of precipitation is 40%.
Saturday
Mostly cloudy, with a high near 39.
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 33.
Sunday Night
Partly cloudy, with a low around 16.
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:
Harrisburg International Airport PA
 40.2°N 76.77°W (Elev. 299 ft)
Last Update:
2:21 pm EST Dec 9, 2025
Forecast Valid:
6pm EST Dec 9, 2025-6pm EST Dec 16, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation