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

83°F

28°C

Humidity 28%
Wind Speed NW 15 G 23 mph
Barometer 29.84 in (1010.2 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 20 Jun 1:56 pm EDT
Extended Forecast for

Hallam PA

  • This Afternoon

    This Afternoon: Sunny, with a high near 82. West wind around 14 mph, with gusts as high as 25 mph.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 60. West wind 5 to 7 mph becoming calm in the evening.

    Low: 60 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 84. Northwest wind 5 to 10 mph.

    High: 84 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 63. Light and variable wind.

    Low: 63 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 82. East wind 6 to 9 mph becoming south in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 82 °F

    Chance
    Showers then
    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 65. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 65 °F

    Showers

  • Tuesday

    Tuesday: A chance of showers before 2pm. Partly sunny, with a high near 82. Chance of precipitation is 30%.

    High: 82 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 82. West wind around 14 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 60. West wind 5 to 7 mph becoming calm in the evening.
Sunday
Increasing clouds, with a high near 84. Northwest wind 5 to 10 mph.
Sunday Night
Mostly cloudy, with a low around 63. Light and variable wind.
Monday
A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 82. East wind 6 to 9 mph becoming south in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Showers and possibly a thunderstorm. Low around 65. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
A chance of showers before 2pm. Partly sunny, with a high near 82. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 60.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Mostly clear, with a low around 63.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 50%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hallam PA
 40°N 76.6°W (Elev. 364 ft)
Last Update:
2:21 pm EDT Jun 20, 2026
Forecast Valid:
2pm EDT Jun 20, 2026-6pm EDT Jun 26, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation