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.

Fair

34°F

1°C

Humidity 50%
Wind Speed W 9 mph
Barometer 30.11 in (1020.0 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 13 Mar 2:56 am EDT
Extended Forecast for

Hallam PA

  • Overnight

    Overnight: Mostly clear, with a low around 29. West wind around 5 mph.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 48. Breezy, with a south wind 7 to 12 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 43 mph.

    High: 48 °F

    Mostly Sunny
    then Mostly
    Cloudy and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 36. West wind 14 to 17 mph, with gusts as high as 34 mph.

    Low: 36 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 50. West wind 14 to 16 mph, with gusts as high as 33 mph.

    High: 50 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 36. Calm wind becoming east around 5 mph after midnight.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 54.

    High: 54 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Rain, mainly after 2am. Low around 48. Chance of precipitation is 90%.

    Low: 48 °F

    Chance Rain
    then Rain

  • Monday

    Monday: Rain before 8am, then showers, mainly after 8am. High near 65. Breezy. Chance of precipitation is 100%.

    High: 65 °F

    Rain and
    Breezy

  • Monday Night

    Monday Night: Rain showers before 2am, then a chance of rain and snow showers. Low around 30. Breezy. Chance of precipitation is 80%.

    Low: 30 °F

    Breezy.
    Showers then
    Rain/Snow
    Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 29. West wind around 5 mph.
Friday
Increasing clouds, with a high near 48. Breezy, with a south wind 7 to 12 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 43 mph.
Friday Night
Mostly clear, with a low around 36. West wind 14 to 17 mph, with gusts as high as 34 mph.
Saturday
Sunny, with a high near 50. West wind 14 to 16 mph, with gusts as high as 33 mph.
Saturday Night
Mostly cloudy, with a low around 36. Calm wind becoming east around 5 mph after midnight.
Sunday
Mostly cloudy, with a high near 54.
Sunday Night
Rain, mainly after 2am. Low around 48. Chance of precipitation is 90%.
Monday
Rain before 8am, then showers, mainly after 8am. High near 65. Breezy. Chance of precipitation is 100%.
Monday Night
Rain showers before 2am, then a chance of rain and snow showers. Low around 30. Breezy. Chance of precipitation is 80%.
Tuesday
A chance of rain and snow showers before 8am. Partly sunny, with a high near 37. Breezy. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 23.
Wednesday
Mostly sunny, with a high near 39.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
Partly sunny, with a high near 47.
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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:
2:56 am EDT Mar 13, 2026
Forecast Valid:
3am EDT Mar 13, 2026-6pm EDT Mar 19, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation