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.

Light Rain Fog/Mist

60°F

16°C

Humidity 100%
Wind Speed W 5 mph
Barometer 29.58 in (1001.6 mb)
Dewpoint 60°F (16°C)
Visibility 0.75 mi
Last update 12 Mar 3:56 am EDT
Extended Forecast for

Hallam PA

  • Overnight

    Overnight: Showers likely, mainly after 5am. Cloudy, with a low around 42. Breezy, with a west wind 20 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 42 °F

    Showers
    Likely and
    Breezy

  • Thursday

    Thursday: Rain and snow showers before 2pm, then a slight chance of snow showers after 3pm. Temperature falling to around 38 by 1pm. Breezy, with a northwest wind 16 to 24 mph, with gusts as high as 37 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 45 °F⇓

    Rain/Snow and
    Breezy then
    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 28. Northwest wind 5 to 14 mph, with gusts as high as 22 mph.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 48. Breezy, with a south wind 6 to 11 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 45 mph.

    High: 48 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 36. Breezy, with a west wind 17 to 20 mph, with gusts as high as 26 mph.

    Low: 36 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Clear

  • Saturday

    Saturday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Saturday Night

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

    Low: 35 °F

    Mostly Cloudy

  • Sunday

    Sunday: Cloudy, with a high near 54.

    High: 54 °F

    Cloudy

  • Sunday Night

    Sunday Night: Showers likely, mainly after 2am. Cloudy, with a low around 49. Breezy. Chance of precipitation is 70%.

    Low: 49 °F

    Chance
    Showers then
    Showers
    Likely and
    Breezy

Detailed Forecast

Overnight
Showers likely, mainly after 5am. Cloudy, with a low around 42. Breezy, with a west wind 20 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain and snow showers before 2pm, then a slight chance of snow showers after 3pm. Temperature falling to around 38 by 1pm. Breezy, with a northwest wind 16 to 24 mph, with gusts as high as 37 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday Night
Mostly clear, with a low around 28. Northwest wind 5 to 14 mph, with gusts as high as 22 mph.
Friday
Increasing clouds, with a high near 48. Breezy, with a south wind 6 to 11 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 45 mph.
Friday Night
Partly cloudy, with a low around 36. Breezy, with a west wind 17 to 20 mph, with gusts as high as 26 mph.
Saturday
Sunny, with a high near 50.
Saturday Night
Mostly cloudy, with a low around 35.
Sunday
Cloudy, with a high near 54.
Sunday Night
Showers likely, mainly after 2am. Cloudy, with a low around 49. Breezy. Chance of precipitation is 70%.
Monday
Showers. High near 64. Breezy. Chance of precipitation is 90%.
Monday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 28. Breezy. Chance of precipitation is 40%.
Tuesday
Mostly sunny, with a high near 36.
Tuesday Night
Partly cloudy, with a low around 22.
Wednesday
Mostly sunny, with a high near 38.
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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:
3:06 am EDT Mar 12, 2026
Forecast Valid:
4am EDT Mar 12, 2026-6pm EDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation