National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Mostly Cloudy

86°F

30°C

Humidity 43%
Wind Speed W 10 mph
Barometer 29.89 in (1012.1 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 15 Apr 1:56 pm EDT
Extended Forecast for

Hallam PA

  • This Afternoon

    This Afternoon: Sunny, with a high near 87. Southwest wind around 13 mph, with gusts as high as 23 mph.

    High: 87 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 66. Southwest wind around 7 mph.

    Low: 66 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 86. Southwest wind 5 to 10 mph.

    High: 86 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers, mainly before 2am. Mostly cloudy, with a low around 64. Southwest wind around 7 mph becoming west in the evening. Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    Showers

  • Friday

    Friday: A slight chance of showers. Mostly sunny, with a high near 77. Northwest wind around 9 mph. Chance of precipitation is 20%.

    High: 77 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers after 8pm. Mostly cloudy, with a low around 49. Chance of precipitation is 50%.

    Low: 49 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers. Mostly cloudy, with a high near 60. Chance of precipitation is 50%.

    High: 60 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 87. Southwest wind around 13 mph, with gusts as high as 23 mph.
Tonight
Increasing clouds, with a low around 66. Southwest wind around 7 mph.
Thursday
Mostly sunny, with a high near 86. Southwest wind 5 to 10 mph.
Thursday Night
A chance of showers, mainly before 2am. Mostly cloudy, with a low around 64. Southwest wind around 7 mph becoming west in the evening. Chance of precipitation is 30%.
Friday
A slight chance of showers. Mostly sunny, with a high near 77. Northwest wind around 9 mph. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 56.
Saturday
Mostly sunny, with a high near 78.
Saturday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 49. Chance of precipitation is 50%.
Sunday
A chance of showers. Mostly cloudy, with a high near 60. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 36.
Monday
Mostly sunny, with a high near 51.
Monday Night
Mostly clear, with a low around 32.
Tuesday
Sunny, with a high near 62.
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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:
2:46 pm EDT Apr 15, 2026
Forecast Valid:
2pm EDT Apr 15, 2026-6pm EDT Apr 21, 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