National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
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Current conditions at

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Mostly Cloudy

40°F

4°C

Humidity 86%
Wind Speed Calm
Barometer 30.01 in (1016.7 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 7 Jan 10:56 pm EST
Extended Forecast for

Harrisburg International Airport PA

  • Tonight

    Tonight: Partly cloudy, with a low around 34. West wind around 5 mph becoming calm after midnight.

    Low: 34 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 49. Calm wind.

    High: 49 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 36. Calm wind becoming southeast around 6 mph after midnight.

    Low: 36 °F

    Increasing
    Clouds

  • Friday

    Friday: A chance of rain, mainly after 1pm. Mostly cloudy, with a high near 54. South wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 54 °F

    Slight Chance
    Rain then
    Chance Rain

  • Friday Night

    Friday Night: A chance of rain. Cloudy, with a low around 49. South wind 3 to 6 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 49 °F

    Chance Rain

  • Saturday

    Saturday: Rain. High near 59. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 59 °F

    Rain

  • Saturday Night

    Saturday Night: Rain likely before 1am. Mostly cloudy, with a low around 40. Chance of precipitation is 60%.

    Low: 40 °F

    Rain Likely

  • Sunday

    Sunday: Partly sunny, with a high near 46.

    High: 46 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 34. West wind around 5 mph becoming calm after midnight.
Thursday
Mostly sunny, with a high near 49. Calm wind.
Thursday Night
Increasing clouds, with a low around 36. Calm wind becoming southeast around 6 mph after midnight.
Friday
A chance of rain, mainly after 1pm. Mostly cloudy, with a high near 54. South wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A chance of rain. Cloudy, with a low around 49. South wind 3 to 6 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain. High near 59. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Rain likely before 1am. Mostly cloudy, with a low around 40. Chance of precipitation is 60%.
Sunday
Partly sunny, with a high near 46.
Sunday Night
Partly cloudy, with a low around 27.
Monday
Sunny, with a high near 38.
Monday Night
Partly cloudy, with a low around 26.
Tuesday
Mostly sunny, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 29.
Wednesday
Mostly cloudy, with a high near 44.
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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:
7:05 pm EST Jan 7, 2026
Forecast Valid:
11pm EST Jan 7, 2026-6pm EST Jan 14, 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