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

60°F

16°C

Humidity 65%
Wind Speed S 3 mph
Barometer 29.94 in (1013.9 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 20 May 9:56 pm EDT
Extended Forecast for

Harrisburg International Airport PA

  • Tonight

    Tonight: Showers likely, mainly after 5am. Cloudy, with a low around 54. Calm wind becoming east around 6 mph after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 54 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers. High near 57. Southeast wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 57 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 51. East wind 9 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 51 °F

    Showers

  • Thursday

    Thursday: Showers. High near 61. East wind around 8 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 61 °F

    Showers

  • Thursday Night

    Thursday Night: A chance of showers. Mostly cloudy, with a low around 49. West wind around 6 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 49 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers. Mostly cloudy, with a high near 61. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers. Mostly sunny, with a high near 64. Chance of precipitation is 30%.

    High: 64 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

Detailed Forecast

Tonight
Showers likely, mainly after 5am. Cloudy, with a low around 54. Calm wind becoming east around 6 mph after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Showers. High near 57. Southeast wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday Night
Showers and possibly a thunderstorm. Low around 51. East wind 9 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday
Showers. High near 61. East wind around 8 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 49. West wind around 6 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A chance of showers. Mostly cloudy, with a high near 61. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Mostly cloudy, with a low around 48.
Saturday
A chance of showers. Mostly sunny, with a high near 64. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 48.
Sunday
Partly sunny, with a high near 69.
Sunday Night
Mostly cloudy, with a low around 52.
Memorial Day
A chance of showers. Mostly cloudy, with a high near 72. Chance of precipitation is 30%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 73. Chance of precipitation is 50%.
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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:
7:43 pm EDT May 20, 2025
Forecast Valid:
10pm EDT May 20, 2025-6pm EDT May 27, 2025
 
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