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.

Partly Cloudy and Breezy

31°F

-1°C

Humidity 56%
Wind Speed W 21 G 36 mph
Barometer 29.77 in (1008.2 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 17 Mar 5:56 am EDT
Extended Forecast for

Harrisburg International Airport PA

  • Today

    Today: Increasing clouds, with a high near 37. West wind around 17 mph, with gusts as high as 33 mph.

    High: 37 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 22. West wind 5 to 10 mph becoming light northwest after midnight.

    Low: 22 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 40. Calm wind becoming south around 6 mph in the afternoon.

    High: 40 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 26. Light southeast wind.

    Low: 26 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 50. South wind 3 to 7 mph.

    High: 50 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers. Mostly cloudy, with a low around 33. Chance of precipitation is 20%.

    Low: 33 °F

    Slight Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

  • Friday Night

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

    Low: 40 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 37. West wind around 17 mph, with gusts as high as 33 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 22. West wind 5 to 10 mph becoming light northwest after midnight.
Wednesday
Mostly sunny, with a high near 40. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 26. Light southeast wind.
Thursday
Partly sunny, with a high near 50. South wind 3 to 7 mph.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 33. Chance of precipitation is 20%.
Friday
Partly sunny, with a high near 55.
Friday Night
A chance of showers. Mostly cloudy, with a low around 40. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 54.
Saturday Night
Mostly cloudy, with a low around 40.
Sunday
Partly sunny, with a high near 61.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 35. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 49.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg International Airport PA
 40.22°N 76.76°W (Elev. 446 ft)
Last Update:
2:56 am EDT Mar 17, 2026
Forecast Valid:
6am EDT Mar 17, 2026-6pm EDT Mar 23, 2026
 
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