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

27°F

-3°C

Humidity 49%
Wind Speed W 12 G 23 mph
Barometer 29.88 in (1012.2 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 30 Dec 9:56 pm EST
Extended Forecast for

Hallam PA

  • Tonight

    Tonight: Isolated snow showers after 3am. Increasing clouds, with a low around 23. West wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 23 °F

    Partly Cloudy
    then Isolated
    Snow Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 34. West wind 9 to 14 mph, with gusts as high as 23 mph.

    High: 34 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Scattered snow showers, mainly between 10pm and 4am. Mostly cloudy, with a low around 23. Southwest wind 9 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

    Low: 23 °F

    Scattered
    Snow Showers

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 28. West wind around 16 mph, with gusts as high as 26 mph.

    High: 28 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 17. West wind 6 to 10 mph.

    Low: 17 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 34.

    High: 34 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 21.

    Low: 21 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 33.

    High: 33 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 20.

    Low: 20 °F

    Partly Cloudy

Detailed Forecast

Tonight
Isolated snow showers after 3am. Increasing clouds, with a low around 23. West wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, with a high near 34. West wind 9 to 14 mph, with gusts as high as 23 mph.
Wednesday Night
Scattered snow showers, mainly between 10pm and 4am. Mostly cloudy, with a low around 23. Southwest wind 9 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
New Year's Day
Mostly sunny, with a high near 28. West wind around 16 mph, with gusts as high as 26 mph.
Thursday Night
Partly cloudy, with a low around 17. West wind 6 to 10 mph.
Friday
Mostly cloudy, with a high near 34.
Friday Night
Partly cloudy, with a low around 21.
Saturday
Partly sunny, with a high near 33.
Saturday Night
Partly cloudy, with a low around 20.
Sunday
Mostly sunny, with a high near 34.
Sunday Night
Mostly cloudy, with a low around 24.
Monday
Mostly cloudy, with a high near 38.
Monday Night
Mostly cloudy, with a low around 26.
Tuesday
Partly sunny, with a high near 37.
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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:
10:06 pm EST Dec 30, 2025
Forecast Valid:
10pm EST Dec 30, 2025-6pm EST Jan 6, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation