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Current conditions at

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Partly Cloudy

30°F

-1°C

Humidity 43%
Wind Speed NW 6 mph
Barometer 30.22 in (1023.7 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 4 Feb 1:56 pm EST
Extended Forecast for

Hummelstown PA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 32. North wind around 6 mph.

    High: 32 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 9. Calm wind.

    Low: 9 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 28. Northwest wind 3 to 6 mph.

    High: 28 °F

    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 10. Calm wind.

    Low: 10 °F

    Increasing
    Clouds

  • Friday

    Friday: Snow likely after 1pm. Partly sunny, with a high near 30. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 30 °F

    Mostly Sunny
    then Snow
    Likely

  • Friday Night

    Friday Night: A chance of snow before 1am, then a slight chance of snow showers after 1am. Mostly cloudy, with a low around 10. Chance of precipitation is 40%.

    Low: 10 °F

    Chance Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 19. Windy.

    High: 19 °F

    Mostly Sunny
    and Windy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 4. Blustery.

    Low: 4 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 19.

    High: 19 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 32. North wind around 6 mph.
Tonight
Partly cloudy, with a low around 9. Calm wind.
Thursday
Sunny, with a high near 28. Northwest wind 3 to 6 mph.
Thursday Night
Increasing clouds, with a low around 10. Calm wind.
Friday
Snow likely after 1pm. Partly sunny, with a high near 30. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Friday Night
A chance of snow before 1am, then a slight chance of snow showers after 1am. Mostly cloudy, with a low around 10. Chance of precipitation is 40%.
Saturday
Mostly sunny, with a high near 19. Windy.
Saturday Night
Mostly clear, with a low around 4. Blustery.
Sunday
Sunny, with a high near 19.
Sunday Night
Partly cloudy, with a low around 8.
Monday
Mostly cloudy, with a high near 29.
Monday Night
Partly cloudy, with a low around 17.
Tuesday
Partly sunny, with a high near 36.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hummelstown PA
 40.26°N 76.7°W (Elev. 427 ft)
Last Update:
1:11 pm EST Feb 4, 2026
Forecast Valid:
2pm EST Feb 4, 2026-6pm EST Feb 10, 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