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.

Partly Cloudy

37°F

3°C

Humidity 46%
Wind Speed N 9 mph
Barometer 30.45 in (1031.5 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 24 Mar 9:56 am EDT
Extended Forecast for

Hallam PA

  • Today

    Today: Sunny, with a high near 47. North wind 5 to 7 mph becoming calm in the afternoon.

    High: 47 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 35. Light southwest wind.

    Low: 35 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 54. Light south wind increasing to 5 to 10 mph in the morning.

    High: 54 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 44. South wind around 10 mph.

    Low: 44 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 68. Southwest wind 8 to 13 mph, with gusts as high as 23 mph.

    High: 68 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Rain, mainly after 2am. Low around 49. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 49 °F

    Chance Rain
    then Rain

  • Friday

    Friday: Rain, mainly before 8am. High near 56. Chance of precipitation is 80%.

    High: 56 °F

    Rain then
    Chance Rain

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 47. North wind 5 to 7 mph becoming calm in the afternoon.
Tonight
Increasing clouds, with a low around 35. Light southwest wind.
Wednesday
Mostly cloudy, with a high near 54. Light south wind increasing to 5 to 10 mph in the morning.
Wednesday Night
Mostly cloudy, with a low around 44. South wind around 10 mph.
Thursday
Partly sunny, with a high near 68. Southwest wind 8 to 13 mph, with gusts as high as 23 mph.
Thursday Night
Rain, mainly after 2am. Low around 49. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain, mainly before 8am. High near 56. Chance of precipitation is 80%.
Friday Night
Partly cloudy, with a low around 27.
Saturday
Sunny, with a high near 45.
Saturday Night
Mostly clear, with a low around 29.
Sunday
Sunny, with a high near 53.
Sunday Night
Mostly cloudy, with a low around 38.
Monday
Partly sunny, with a high near 59.
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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:
8:05 am EDT Mar 24, 2026
Forecast Valid:
10am EDT Mar 24, 2026-6pm EDT Mar 30, 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