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

49°F

9°C

Humidity 93%
Wind Speed Vrbl 3 mph
Barometer 30.06 in (1018.2 mb)
Dewpoint 47°F (8°C)
Visibility 7.00 mi
Last update 9 Jan 6:56 pm EST
Extended Forecast for

Hallam PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 39. Southwest wind 6 to 13 mph becoming northwest after midnight. Winds could gust as high as 28 mph.

    Low: 39 °F

    Mostly Cloudy

  • Saturday

    Saturday: Rain, mainly before 5pm. High near 43. Light and variable wind becoming east around 6 mph in the morning. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 43 °F

    Rain Likely
    then Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly between 7pm and 1am, then a slight chance of showers after 1am. Cloudy, with a low around 36. East wind 6 to 10 mph becoming west after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 36 °F

    Rain Likely

  • Sunday

    Sunday: A slight chance of rain showers after 1pm, mixing with snow after 4pm. Mostly sunny, with a high near 40. Breezy, with a west wind 13 to 20 mph, with gusts as high as 38 mph. Chance of precipitation is 20%.

    High: 40 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow and
    Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 28. Breezy, with a west wind 15 to 20 mph, with gusts as high as 34 mph.

    Low: 28 °F

    Partly Cloudy
    and Breezy

  • Monday

    Monday: Sunny, with a high near 40.

    High: 40 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 39. Southwest wind 6 to 13 mph becoming northwest after midnight. Winds could gust as high as 28 mph.
Saturday
Rain, mainly before 5pm. High near 43. Light and variable wind becoming east around 6 mph in the morning. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Rain likely, mainly between 7pm and 1am, then a slight chance of showers after 1am. Cloudy, with a low around 36. East wind 6 to 10 mph becoming west after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
A slight chance of rain showers after 1pm, mixing with snow after 4pm. Mostly sunny, with a high near 40. Breezy, with a west wind 13 to 20 mph, with gusts as high as 38 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 28. Breezy, with a west wind 15 to 20 mph, with gusts as high as 34 mph.
Monday
Sunny, with a high near 40.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Sunny, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
Mostly cloudy, with a high near 46.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
Partly sunny, with a high near 35.
Thursday Night
Mostly cloudy, with a low around 19.
Friday
Mostly sunny, with a high near 32.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hallam PA
 40.02°N 76.6°W (Elev. 522 ft)
Last Update:
7:06 pm EST Jan 9, 2026
Forecast Valid:
7pm EST Jan 9, 2026-6pm EST Jan 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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