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 82%
Wind Speed NW 7 mph
Barometer 30.05 in (1017.9 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 4 Dec 5:56 am EST
Extended Forecast for

Harrisburg International Airport PA

  • Today

    Today: Cloudy through mid morning, then gradual clearing, with a high near 37. Light west wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 29 mph.

    High: 37 °F

    Gradual
    Clearing

  • Tonight

    Tonight: Mostly clear, with a low around 14. Northwest wind 5 to 10 mph becoming light and variable after midnight.

    Low: 14 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of snow before 1pm. Mostly cloudy, with a high near 30. Calm wind becoming southeast 5 to 7 mph in the morning. Chance of precipitation is 20%.

    High: 30 °F

    Slight Chance
    Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 22. Calm wind.

    Low: 22 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 39. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 39 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 39.

    High: 39 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 30.

    High: 30 °F

    Mostly Sunny

Detailed Forecast

Today
Cloudy through mid morning, then gradual clearing, with a high near 37. Light west wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 29 mph.
Tonight
Mostly clear, with a low around 14. Northwest wind 5 to 10 mph becoming light and variable after midnight.
Friday
A slight chance of snow before 1pm. Mostly cloudy, with a high near 30. Calm wind becoming southeast 5 to 7 mph in the morning. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 22. Calm wind.
Saturday
Partly sunny, with a high near 39. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 25.
Sunday
Mostly cloudy, with a high near 39.
Sunday Night
Mostly cloudy, with a low around 22.
Monday
Mostly sunny, with a high near 30.
Monday Night
Partly cloudy, with a low around 13.
Tuesday
Partly sunny, with a high near 33.
Tuesday Night
Mostly cloudy, with a low around 25.
Wednesday
Mostly cloudy, with a high near 41.
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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:
6:16 am EST Dec 4, 2025
Forecast Valid:
6am EST Dec 4, 2025-6pm EST Dec 10, 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