Current conditions at

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Overcast

70°F

21°C

Humidity 82%
Wind Speed SE 9 mph
Barometer 29.94 in (1013.6 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 24 Aug 3:56 am EDT
Extended Forecast for

Hallam PA

  • Today

    Today: A chance of showers, with thunderstorms also possible after 2pm.  Mostly cloudy, with a high near 82. South wind 6 to 9 mph.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers before 7pm, then a chance of showers and thunderstorms between 7pm and 2am.  Mostly cloudy, with a low around 65. South wind around 6 mph becoming calm  in the evening.  Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: Sunny, with a high near 81. Northwest wind 6 to 10 mph.

    High: 81 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57. West wind 5 to 7 mph.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 76. West wind 5 to 10 mph.

    High: 76 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

Today
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 82. South wind 6 to 9 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers before 7pm, then a chance of showers and thunderstorms between 7pm and 2am. Mostly cloudy, with a low around 65. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Sunny, with a high near 81. Northwest wind 6 to 10 mph.
Monday Night
Mostly clear, with a low around 57. West wind 5 to 7 mph.
Tuesday
Sunny, with a high near 76. West wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Mostly clear, with a low around 53.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 53.
Saturday
Mostly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
Hallam PA
 40°N 76.6°W (Elev. 364 ft)
2:56 am EDT Aug 24, 2025
4am EDT Aug 24, 2025-6pm EDT Aug 30, 2025
 
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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