Current conditions at

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

A Few Clouds

81°F

27°C

Humidity 47%
Wind Speed W 9 mph
Barometer 29.98 in (1015.0 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 11 Sep 3:56 pm EDT
Extended Forecast for

Hummelstown PA

  • Tonight

    Tonight: Partly cloudy, with a low around 61. Light east wind.

    Low: 61 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 82. East wind 5 to 10 mph becoming southeast in the afternoon.

    High: 82 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Showers and thunderstorms before 2am, then showers and possibly a thunderstorm, mainly after 2am. Some of the storms could produce heavy rainfall.  Low around 68. Southeast wind 5 to 9 mph becoming light  after midnight.  Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 68 °F

    Chance
    T-storms then
    Heavy Rain

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms between 7am and 2pm.  Cloudy through mid morning, then gradual clearing, with a high near 84. Calm wind becoming northwest 5 to 7 mph in the morning.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 84 °F

    Showers
    Likely then
    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 64. West wind 3 to 7 mph.

    Low: 64 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 61. Light east wind.
Saturday
Mostly cloudy, with a high near 82. East wind 5 to 10 mph becoming southeast in the afternoon.
Saturday Night
Showers and thunderstorms before 2am, then showers and possibly a thunderstorm, mainly after 2am. Some of the storms could produce heavy rainfall. Low around 68. Southeast wind 5 to 9 mph becoming light after midnight. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms between 7am and 2pm. Cloudy through mid morning, then gradual clearing, with a high near 84. Calm wind becoming northwest 5 to 7 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Partly cloudy, with a low around 64. West wind 3 to 7 mph.
Monday
Sunny, with a high near 77.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Sunny, with a high near 76.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Sunny, with a high near 82.
Wednesday Night
Partly cloudy, with a low around 62.
Thursday
A chance of showers. Mostly sunny, with a high near 84. Chance of precipitation is 40%.
Thursday Night
A chance of showers. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
Hummelstown PA
 40.26°N 76.7°W (Elev. 427 ft)
2:21 pm EDT Sep 11, 2026
4pm EDT Sep 11, 2026-6pm EDT Sep 18, 2026
 
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Additional Resources

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