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

26°F

-3°C

Humidity 31%
Wind Speed NE 7 mph
Barometer 30.29 in (1026.1 mb)
Dewpoint -1°F (-18°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 8 Dec 3:56 pm EST
Extended Forecast for

Harrisburg International Airport PA

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 13. North wind 5 to 7 mph becoming calm in the evening.

    Low: 13 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Increasing clouds, with a high near 33. Light southeast wind becoming south 5 to 10 mph in the afternoon.

    High: 33 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A slight chance of snow between 1am and 4am, then a slight chance of freezing rain after 4am. Mostly cloudy, with a low around 27. South wind around 10 mph. Chance of precipitation is 20%.

    Low: 27 °F

    Mostly Cloudy
    then Slight
    Chance Wintry
    Mix

  • Wednesday

    Wednesday: Rain or freezing rain likely, becoming all rain after 10am. Cloudy, with a high near 42. South wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 42 °F

    Rain/Freezing
    Rain Likely
    then Rain
    Likely

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 31. West wind 10 to 13 mph, with gusts as high as 22 mph.

    Low: 31 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 35.

    High: 35 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of snow showers before 1am. Mostly cloudy, with a low around 23. Chance of precipitation is 40%.

    Low: 23 °F

    Chance Snow
    Showers

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 13. North wind 5 to 7 mph becoming calm in the evening.
Tuesday
Increasing clouds, with a high near 33. Light southeast wind becoming south 5 to 10 mph in the afternoon.
Tuesday Night
A slight chance of snow between 1am and 4am, then a slight chance of freezing rain after 4am. Mostly cloudy, with a low around 27. South wind around 10 mph. Chance of precipitation is 20%.
Wednesday
Rain or freezing rain likely, becoming all rain after 10am. Cloudy, with a high near 42. South wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Mostly cloudy, with a low around 31. West wind 10 to 13 mph, with gusts as high as 22 mph.
Thursday
Mostly sunny, with a high near 36.
Thursday Night
Mostly cloudy, with a low around 24.
Friday
Partly sunny, with a high near 35.
Friday Night
A chance of snow showers before 1am. Mostly cloudy, with a low around 23. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 33.
Saturday Night
Mostly cloudy, with a low around 20.
Sunday
Mostly sunny, with a high near 31.
Sunday Night
Partly cloudy, with a low around 17.
Monday
Mostly sunny, with a high near 32.
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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:
3:52 pm EST Dec 8, 2025
Forecast Valid:
4pm EST Dec 8, 2025-6pm EST Dec 15, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation