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 and Breezy

41°F

5°C

Humidity 47%
Wind Speed W 22 G 39 mph
Barometer 29.84 in (1010.9 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 11 Nov 12:56 pm EST
Extended Forecast for

Hummelstown PA

  • Veterans Day

    Veterans Day: Mostly sunny, with a high near 44. Breezy, with a west wind 18 to 21 mph, with gusts as high as 37 mph.

    High: 44 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Increasing clouds, with a low around 31. South wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 31 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 52. Southwest wind 9 to 14 mph becoming west in the afternoon. Winds could gust as high as 26 mph.

    High: 52 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 37. West wind around 10 mph, with gusts as high as 20 mph.

    Low: 37 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 53. West wind 10 to 15 mph, with gusts as high as 28 mph.

    High: 53 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

Detailed Forecast

Veterans Day
Mostly sunny, with a high near 44. Breezy, with a west wind 18 to 21 mph, with gusts as high as 37 mph.
Tonight
Increasing clouds, with a low around 31. South wind 6 to 10 mph, with gusts as high as 20 mph.
Wednesday
Mostly cloudy, with a high near 52. Southwest wind 9 to 14 mph becoming west in the afternoon. Winds could gust as high as 26 mph.
Wednesday Night
Partly cloudy, with a low around 37. West wind around 10 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 53. West wind 10 to 15 mph, with gusts as high as 28 mph.
Thursday Night
Mostly clear, with a low around 33.
Friday
Mostly sunny, with a high near 55.
Friday Night
Partly cloudy, with a low around 30.
Saturday
Mostly sunny, with a high near 53.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 38. Chance of precipitation is 40%.
Sunday
A chance of showers. Mostly cloudy, with a high near 64. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 40.
Monday
Mostly sunny, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hummelstown PA
 40.28°N 76.72°W (Elev. 400 ft)
Last Update:
12:56 pm EST Nov 11, 2025
Forecast Valid:
1pm EST Nov 11, 2025-6pm EST Nov 17, 2025
 
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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