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

57°F

14°C

Humidity 55%
Wind Speed NW 16 G 23 mph
Barometer 29.82 in (1009.8 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 14 May 4:56 pm EDT
Extended Forecast for

Harrisburg International Airport PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 46. Northwest wind 10 to 15 mph, with gusts as high as 21 mph.

    Low: 46 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 70. Northwest wind 10 to 14 mph, with gusts as high as 22 mph.

    High: 70 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 50. Calm wind.

    Low: 50 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 80. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers. Mostly cloudy, with a low around 59. South wind 3 to 6 mph. Chance of precipitation is 20%.

    Low: 59 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 20%.

    High: 87 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Monday

    Monday: Sunny and hot, with a high near 92.

    High: 92 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 46. Northwest wind 10 to 15 mph, with gusts as high as 21 mph.
Friday
Mostly sunny, with a high near 70. Northwest wind 10 to 14 mph, with gusts as high as 22 mph.
Friday Night
Partly cloudy, with a low around 50. Calm wind.
Saturday
Sunny, with a high near 80. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Saturday Night
A slight chance of showers. Mostly cloudy, with a low around 59. South wind 3 to 6 mph. Chance of precipitation is 20%.
Sunday
A slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 62.
Monday
Sunny and hot, with a high near 92.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Sunny and hot, with a high near 94.
Tuesday Night
Partly cloudy, with a low around 68.
Wednesday
A chance of showers. Mostly sunny and hot, with a high near 92. Chance of precipitation is 50%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.
Thursday
A chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 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:
2:37 pm EDT May 14, 2026
Forecast Valid:
5pm EDT May 14, 2026-6pm EDT May 21, 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