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.

Fog/Mist

39°F

4°C

Humidity 100%
Wind Speed NW 7 mph
Barometer 29.84 in (1010.6 mb)
Dewpoint 39°F (4°C)
Visibility 4.00 mi
Wind Chill34°F (1°C)
Last update 11 Jan 2:56 am EST
Extended Forecast for

Hallam PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 34. West wind around 10 mph, with gusts as high as 23 mph.

    Low: 34 °F

    Mostly Cloudy

  • Sunday

    Sunday: Scattered rain and snow showers between 2pm and 3pm. The snow could be heavy at times. Mostly sunny, with a high near 41. Breezy, with a west wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 41 °F

    Sunny then
    Scattered
    Rain/Snow and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 28. Breezy, with a west wind 17 to 23 mph, with gusts as high as 38 mph.

    Low: 28 °F

    Mostly Clear
    and Breezy

  • Monday

    Monday: Mostly sunny, with a high near 41. West wind 10 to 13 mph, with gusts as high as 21 mph.

    High: 41 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 28. Southwest wind around 7 mph.

    Low: 28 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers. Cloudy, with a high near 48. Chance of precipitation is 30%.

    High: 48 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.

    Low: 29 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 34. West wind around 10 mph, with gusts as high as 23 mph.
Sunday
Scattered rain and snow showers between 2pm and 3pm. The snow could be heavy at times. Mostly sunny, with a high near 41. Breezy, with a west wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Mostly clear, with a low around 28. Breezy, with a west wind 17 to 23 mph, with gusts as high as 38 mph.
Monday
Mostly sunny, with a high near 41. West wind 10 to 13 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 28. Southwest wind around 7 mph.
Tuesday
Mostly sunny, with a high near 46.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
A chance of showers. Cloudy, with a high near 48. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Thursday
A chance of rain and snow showers before 1pm. Partly sunny, with a high near 34. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 20.
Friday
Partly sunny, with a high near 32.
Friday Night
Mostly cloudy, with a low around 21.
Saturday
Mostly sunny, with a high near 36.
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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:
1:06 am EST Jan 11, 2026
Forecast Valid:
3am EST Jan 11, 2026-6pm EST Jan 17, 2026
 
Forecast Discussion
 
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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