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.

Fog/Mist

30°F

-1°C

Humidity 92%
Wind Speed Calm
Barometer 29.98 in (1015.7 mb)
Dewpoint 28°F (-2°C)
Visibility 6.00 mi
Last update 27 Dec 6:56 am EST
Extended Forecast for

Harrisburg International Airport PA

  • Today

    Today: Partly sunny, with a high near 37. North wind around 6 mph.

    High: 37 °F

    Partly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 24. Calm wind.

    Low: 24 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A chance of showers after 1pm. Cloudy, with a high near 42. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 42 °F

    Cloudy then
    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely. Cloudy, with a low around 36. Southeast wind 6 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Showers
    Likely

  • Monday

    Monday: A chance of showers. Mostly cloudy, with a high near 55. Breezy, with a south wind 13 to 23 mph becoming west in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 55 °F

    Chance
    Showers and
    Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 25. Breezy.

    Low: 25 °F

    Mostly Cloudy
    and Breezy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 32. Breezy.

    High: 32 °F

    Mostly Cloudy
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 37.

    High: 37 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 37. North wind around 6 mph.
Tonight
Increasing clouds, with a low around 24. Calm wind.
Sunday
A chance of showers after 1pm. Cloudy, with a high near 42. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Showers likely. Cloudy, with a low around 36. Southeast wind 6 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A chance of showers. Mostly cloudy, with a high near 55. Breezy, with a south wind 13 to 23 mph becoming west in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Mostly cloudy, with a low around 25. Breezy.
Tuesday
Mostly cloudy, with a high near 32. Breezy.
Tuesday Night
Mostly cloudy, with a low around 23.
Wednesday
Partly sunny, with a high near 37.
Wednesday Night
Mostly cloudy, with a low around 23.
New Year's Day
Mostly cloudy, with a high near 34.
Thursday Night
Mostly cloudy, with a low around 16.
Friday
Sunny, with a high near 28.
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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:
7:06 am EST Dec 27, 2025
Forecast Valid:
8am EST Dec 27, 2025-6pm EST Jan 2, 2026
 
Forecast Discussion
 
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Additional Resources

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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