National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Overcast

36°F

2°C

Humidity 73%
Wind Speed S 3 mph
Barometer 30.11 in (1020.1 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 7 Dec 9:56 am EST
Extended Forecast for

Hallam PA

  • Today

    Today: Mostly cloudy, with a high near 39. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 39 °F

    Mostly Cloudy

  • Tonight

    Tonight: Partly cloudy, with a low around 23. Southwest wind 6 to 15 mph becoming northwest after midnight. Winds could gust as high as 23 mph.

    Low: 23 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 28. North wind 10 to 15 mph, with gusts as high as 24 mph.

    High: 28 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 13. North wind around 6 mph becoming calm in the evening.

    Low: 13 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 33. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 33 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain. Cloudy, with a high near 44. Chance of precipitation is 40%.

    High: 44 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 39. Calm wind becoming southwest around 6 mph in the afternoon.
Tonight
Partly cloudy, with a low around 23. Southwest wind 6 to 15 mph becoming northwest after midnight. Winds could gust as high as 23 mph.
Monday
Partly sunny, with a high near 28. North wind 10 to 15 mph, with gusts as high as 24 mph.
Monday Night
Partly cloudy, with a low around 13. North wind around 6 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 33. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 28.
Wednesday
A chance of rain. Cloudy, with a high near 44. Chance of precipitation is 40%.
Wednesday Night
Mostly cloudy, with a low around 33.
Thursday
Partly sunny, with a high near 40.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 50%.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 36. Chance of precipitation is 40%.
Friday Night
A chance of snow. Mostly cloudy, with a low around 21. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 28.
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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:
7:36 am EST Dec 7, 2025
Forecast Valid:
10am EST Dec 7, 2025-6pm EST Dec 13, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation