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.

Light Snow Fog/Mist

21°F

-6°C

Humidity 85%
Wind Speed W 7 mph
Barometer 30.28 in (1026.1 mb)
Dewpoint 17°F (-8°C)
Visibility 1.75 mi
Wind Chill12°F (-11°C)
Last update 15 Dec 4:56 pm EST
Extended Forecast for

Harrisburg International Airport PA

  • This Afternoon

    This Afternoon: A slight chance of snow showers. Mostly cloudy, with a high near 27. West wind around 8 mph. Chance of precipitation is 20%.

    High: 27 °F

    Slight Chance
    Snow Showers

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 15. Southwest wind around 5 mph becoming calm in the evening.

    Low: 15 °F

    Gradual
    Clearing

  • Tuesday

    Tuesday: Increasing clouds, with a high near 32. Light and variable wind.

    High: 32 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 22. South wind around 6 mph.

    Low: 22 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 46. South wind 6 to 9 mph becoming west in the afternoon.

    High: 46 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Showers. Low around 37. Chance of precipitation is 90%.

    Low: 37 °F

    Showers

  • Friday

    Friday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A slight chance of snow showers. Mostly cloudy, with a high near 27. West wind around 8 mph. Chance of precipitation is 20%.
Tonight
Cloudy during the early evening, then gradual clearing, with a low around 15. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
Increasing clouds, with a high near 32. Light and variable wind.
Tuesday Night
Partly cloudy, with a low around 22. South wind around 6 mph.
Wednesday
Partly sunny, with a high near 46. South wind 6 to 9 mph becoming west in the afternoon.
Wednesday Night
Partly cloudy, with a low around 25.
Thursday
Partly sunny, with a high near 49.
Thursday Night
Showers. Low around 37. Chance of precipitation is 90%.
Friday
Partly sunny, with a high near 43.
Friday Night
Partly cloudy, with a low around 23.
Saturday
Partly sunny, with a high near 39.
Saturday Night
Mostly cloudy, with a low around 31.
Sunday
Partly sunny, with a high near 45.
Sunday Night
Partly cloudy, with a low around 27.
Monday
Partly sunny, with a high near 40.
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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:
3:21 pm EST Dec 15, 2025
Forecast Valid:
5pm EST Dec 15, 2025-6pm EST Dec 22, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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