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

64°F

18°C

Humidity 93%
Wind Speed Calm
Barometer 30.08 in (1018.5 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 30 Sep 4:56 am EDT
Extended Forecast for

Harrisburg International Airport PA

  • Today

    Today: Mostly cloudy, with a high near 78. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 78 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 62. South wind 3 to 5 mph.

    Low: 62 °F

    Mostly Cloudy

  • Thursday

    Thursday: Patchy fog between 7am and 8am. Otherwise, partly sunny, with a high near 80. Calm wind becoming south around 5 mph in the afternoon.

    High: 80 °F

    Patchy Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 63. Southwest wind around 7 mph.

    Low: 63 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers after 2pm. Partly sunny, with a high near 82. Southwest wind 5 to 11 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 82 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers before 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 56 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers after 8am. Mostly cloudy, with a high near 66. Chance of precipitation is 40%.

    High: 66 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly cloudy, with a high near 78. Calm wind becoming southwest around 6 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 62. South wind 3 to 5 mph.
Thursday
Patchy fog between 7am and 8am. Otherwise, partly sunny, with a high near 80. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 63. Southwest wind around 7 mph.
Friday
A chance of showers after 2pm. Partly sunny, with a high near 82. Southwest wind 5 to 11 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A chance of showers before 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
Mostly cloudy, with a low around 52.
Sunday
A chance of showers after 8am. Mostly cloudy, with a high near 66. Chance of precipitation is 40%.
Sunday Night
Mostly cloudy, with a low around 52.
Monday
Mostly sunny, with a high near 66.
Monday Night
Mostly clear, with a low around 41.
Tuesday
Sunny, with a high near 60.
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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:
5:26 am EDT Sep 30, 2026
Forecast Valid:
5am EDT Sep 30, 2026-6pm EDT Oct 6, 2026
 
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