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.

Mostly Cloudy

74°F

23°C

Humidity 52%
Wind Speed NW 13 mph
Barometer 29.92 in (1013.1 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 17 Apr 12:56 pm EDT
Extended Forecast for

Harrisburg International Airport PA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 77. North wind around 9 mph.

    High: 77 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 57. Light northeast wind.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 78. South wind 5 to 13 mph, with gusts as high as 21 mph.

    High: 78 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 50. Southeast wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 50 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely, mainly before 2pm. Mostly cloudy, with a high near 55. Northwest wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 55 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers, mainly before 8pm. Areas of frost after 5am. Otherwise, partly cloudy, with a low around 36. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 50.

    High: 50 °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 59.

    High: 59 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 77. North wind around 9 mph.
Tonight
Mostly clear, with a low around 57. Light northeast wind.
Saturday
Partly sunny, with a high near 78. South wind 5 to 13 mph, with gusts as high as 21 mph.
Saturday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 50. Southeast wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Showers likely, mainly before 2pm. Mostly cloudy, with a high near 55. Northwest wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
A chance of showers, mainly before 8pm. Areas of frost after 5am. Otherwise, partly cloudy, with a low around 36. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 50.
Monday Night
Mostly clear, with a low around 30.
Tuesday
Sunny, with a high near 59.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Mostly sunny, with a high near 70.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Mostly sunny, with a high near 71.
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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:
8:06 am EDT Apr 17, 2026
Forecast Valid:
1pm EDT Apr 17, 2026-6pm EDT Apr 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation