National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
News Headlines
Current conditions at

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

A Few Clouds

33°F

1°C

Humidity 45%
Wind Speed W 12 mph
Barometer 29.91 in (1013.2 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 24 Feb 4:56 pm EST
Extended Forecast for

Hummelstown PA

  • Tonight

    Tonight: Snow likely, mainly after 3am. Increasing clouds, with a low around 25. Light and variable wind becoming south 5 to 10 mph in the evening. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 25 °F

    Mostly Cloudy
    then Snow
    Likely

  • Wednesday

    Wednesday: A chance of snow, mainly before 7am. Mostly cloudy, with a high near 48. West wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    High: 48 °F

    Chance Snow
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 29. Southwest wind 5 to 7 mph becoming calm after midnight.

    Low: 29 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of rain before 10am, then a chance of snow. Partly sunny, with a high near 42. Calm wind becoming northwest around 6 mph in the morning. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 42 °F

    Slight Chance
    Rain/Snow
    then Chance
    Snow

  • Thursday Night

    Thursday Night: A chance of snow, mainly before 1am. Mostly cloudy, with a low around 28. Light northeast wind. Chance of precipitation is 30%.

    Low: 28 °F

    Chance Snow

  • Friday

    Friday: Mostly sunny, with a high near 44.

    High: 44 °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 55.

    High: 55 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 32 °F

    Partly Cloudy

Detailed Forecast

Tonight
Snow likely, mainly after 3am. Increasing clouds, with a low around 25. Light and variable wind becoming south 5 to 10 mph in the evening. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.
Wednesday
A chance of snow, mainly before 7am. Mostly cloudy, with a high near 48. West wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 29. Southwest wind 5 to 7 mph becoming calm after midnight.
Thursday
A slight chance of rain before 10am, then a chance of snow. Partly sunny, with a high near 42. Calm wind becoming northwest around 6 mph in the morning. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A chance of snow, mainly before 1am. Mostly cloudy, with a low around 28. Light northeast wind. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 44.
Friday Night
Partly cloudy, with a low around 30.
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. 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 rain and 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%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hummelstown PA
 40.26°N 76.7°W (Elev. 427 ft)
Last Update:
4:11 pm EST Feb 24, 2026
Forecast Valid:
5pm EST Feb 24, 2026-6pm EST Mar 3, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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