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.

A Few Clouds

66°F

19°C

Humidity 73%
Wind Speed Calm
Barometer 29.96 in (1014.4 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 17 Apr 10:56 pm EDT
Extended Forecast for

Harrisburg International Airport PA

  • Tonight

    Tonight: Partly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 77. Southeast wind 7 to 14 mph, with gusts as high as 21 mph.

    High: 77 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Showers, mainly after 2am. Low around 48. Southeast wind 7 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 48 °F

    Chance
    Showers then
    Showers

  • Sunday

    Sunday: Showers, mainly before 2pm. High near 57. Northwest wind around 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 57 °F

    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 37. West wind 6 to 10 mph.

    Low: 37 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 56. Calm wind.
Saturday
Mostly sunny, with a high near 77. Southeast wind 7 to 14 mph, with gusts as high as 21 mph.
Saturday Night
Showers, mainly after 2am. Low around 48. Southeast wind 7 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Showers, mainly before 2pm. High near 57. Northwest wind around 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Partly cloudy, with a low around 37. West wind 6 to 10 mph.
Monday
Mostly sunny, with a high near 51.
Monday Night
Mostly clear, with a low around 30.
Tuesday
Sunny, with a high near 58.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Mostly sunny, with a high near 71.
Wednesday Night
Partly cloudy, with a low around 45.
Thursday
Sunny, with a high near 69.
Thursday Night
Mostly clear, with a low around 46.
Friday
Mostly sunny, with a high near 74.
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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:
8:06 pm EDT Apr 17, 2026
Forecast Valid:
11pm EDT Apr 17, 2026-6pm EDT Apr 24, 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