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.

A Few Clouds

10°F

-12°C

Humidity 92%
Wind Speed Calm
Barometer 30.25 in (1024.9 mb)
Dewpoint 8°F (-13°C)
Visibility 9.00 mi
Last update 16 Dec 7:56 am EST
Extended Forecast for

Harrisburg International Airport PA

  • Today

    Today: Sunny, with a high near 33. Light and variable wind.

    High: 33 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 22. South wind around 6 mph.

    Low: 22 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 45. South wind 6 to 10 mph becoming west in the afternoon. Winds could gust as high as 23 mph.

    High: 45 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 24. West wind around 6 mph becoming calm in the evening.

    Low: 24 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 49. Light southeast wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 49 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Showers. Low around 42. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 42 °F

    Showers

  • Friday

    Friday: Partly sunny, with a high near 44. Breezy.

    High: 44 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 22. Breezy.

    Low: 22 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 33. Light and variable wind.
Tonight
Mostly clear, with a low around 22. South wind around 6 mph.
Wednesday
Partly sunny, with a high near 45. South wind 6 to 10 mph becoming west in the afternoon. Winds could gust as high as 23 mph.
Wednesday Night
Partly cloudy, with a low around 24. West wind around 6 mph becoming calm in the evening.
Thursday
Partly sunny, with a high near 49. Light southeast wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Showers. Low around 42. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
Partly sunny, with a high near 44. Breezy.
Friday Night
Partly cloudy, with a low around 22. Breezy.
Saturday
Partly sunny, with a high near 40.
Saturday Night
Mostly cloudy, with a low around 31.
Sunday
Partly sunny, with a high near 45.
Sunday Night
Mostly cloudy, with a low around 28.
Monday
Partly sunny, with a high near 39.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg International Airport PA
 40.2°N 76.77°W (Elev. 299 ft)
Last Update:
7:06 am EST Dec 16, 2025
Forecast Valid:
8am EST Dec 16, 2025-6pm EST Dec 22, 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