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Current conditions at

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Mostly Cloudy

47°F

8°C

Humidity 48%
Wind Speed Calm
Barometer 29.61 in (1002.9 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 25 Feb 4:56 pm EST
Extended Forecast for

Hummelstown PA

  • Tonight

    Tonight: Partly cloudy, with a low around 29. Southwest wind 5 to 8 mph becoming light and variable after midnight.

    Low: 29 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of rain showers before 1pm, then a slight chance of rain and snow showers between 1pm and 4pm, then a slight chance of snow showers after 4pm. Mostly sunny, with a high near 41. West wind 3 to 6 mph. Chance of precipitation is 20%.

    High: 41 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 24. Calm wind.

    Low: 24 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 46. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 46 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 32. South wind around 5 mph becoming calm after midnight.

    Low: 32 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of snow after 1am. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.

    Low: 22 °F

    Partly Cloudy
    then Chance
    Snow

Detailed Forecast

Tonight
Partly cloudy, with a low around 29. Southwest wind 5 to 8 mph becoming light and variable after midnight.
Thursday
A slight chance of rain showers before 1pm, then a slight chance of rain and snow showers between 1pm and 4pm, then a slight chance of snow showers after 4pm. Mostly sunny, with a high near 41. West wind 3 to 6 mph. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 24. Calm wind.
Friday
Sunny, with a high near 46. Calm wind becoming south 5 to 7 mph in the afternoon.
Friday Night
Mostly clear, with a low around 32. South wind around 5 mph becoming calm after midnight.
Saturday
Mostly sunny, with a high near 55.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
Partly sunny, with a high near 42.
Sunday Night
A chance of snow after 1am. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Monday
A chance of snow. Partly sunny, with a high near 32. Chance of precipitation is 40%.
Monday Night
A chance of snow. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Tuesday
A chance of snow. Mostly cloudy, with a high near 37. Chance of precipitation is 40%.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 50%.
Wednesday
A chance of rain. Partly sunny, with a high near 44. Chance of precipitation is 40%.
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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:
1:18 pm EST Feb 25, 2026
Forecast Valid:
5pm EST Feb 25, 2026-6pm EST Mar 4, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation