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.

Overcast

26°F

-3°C

Humidity 31%
Wind Speed NE 7 mph
Barometer 30.29 in (1026.1 mb)
Dewpoint -1°F (-18°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 8 Dec 3:56 pm EST
Extended Forecast for

Hallam PA

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 13. North wind 5 to 8 mph becoming calm after midnight.

    Low: 13 °F

    Gradual
    Clearing

  • Tuesday

    Tuesday: Increasing clouds, with a high near 32. Light southeast wind becoming south 5 to 10 mph in the afternoon.

    High: 32 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A slight chance of snow between 1am and 4am, then a slight chance of freezing rain after 4am. Mostly cloudy, with a low around 28. South wind around 11 mph. Chance of precipitation is 20%.

    Low: 28 °F

    Mostly Cloudy
    then Slight
    Chance Wintry
    Mix

  • Wednesday

    Wednesday: A chance of rain or freezing rain before 10am, then a chance of rain. Cloudy, with a high near 42. South wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 42 °F

    Chance
    Rain/Freezing
    Rain then
    Chance Rain

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 31. West wind around 14 mph, with gusts as high as 22 mph.

    Low: 31 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 35.

    High: 35 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of snow showers before 1am. Mostly cloudy, with a low around 24. Chance of precipitation is 40%.

    Low: 24 °F

    Chance Snow
    Showers

Detailed Forecast

Tonight
Cloudy during the early evening, then gradual clearing, with a low around 13. North wind 5 to 8 mph becoming calm after midnight.
Tuesday
Increasing clouds, with a high near 32. Light southeast wind becoming south 5 to 10 mph in the afternoon.
Tuesday Night
A slight chance of snow between 1am and 4am, then a slight chance of freezing rain after 4am. Mostly cloudy, with a low around 28. South wind around 11 mph. Chance of precipitation is 20%.
Wednesday
A chance of rain or freezing rain before 10am, then a chance of rain. Cloudy, with a high near 42. South wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Mostly cloudy, with a low around 31. West wind around 14 mph, with gusts as high as 22 mph.
Thursday
Mostly sunny, with a high near 37.
Thursday Night
Mostly cloudy, with a low around 25.
Friday
Partly sunny, with a high near 35.
Friday Night
A chance of snow showers before 1am. Mostly cloudy, with a low around 24. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 33.
Saturday Night
Partly cloudy, with a low around 20.
Sunday
Mostly sunny, with a high near 30.
Sunday Night
Partly cloudy, with a low around 16.
Monday
Mostly sunny, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hallam PA
 40.02°N 76.6°W (Elev. 522 ft)
Last Update:
3:52 pm EST Dec 8, 2025
Forecast Valid:
4pm EST Dec 8, 2025-6pm EST Dec 15, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation