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

Somerset County Airport (K2G9)

Lat: 40.04°NLon: 79.02°WElev: 2275ft.

Fair

72°F

22°C

Humidity 57%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 11 Sep 5:55 pm EDT
Extended Forecast for

Casselman PA

  • Tonight

    Tonight: Increasing clouds, with a low around 61. Light and variable wind.

    Low: 61 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 77. South wind 3 to 6 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 11pm, then a chance of showers. Mostly cloudy, with a low around 64. Light and variable wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Showers
    Likely

  • Sunday

    Sunday: A slight chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 77. Calm wind becoming west 5 to 7 mph in the morning. Chance of precipitation is 20%.

    High: 77 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms, then a chance of showers after 8pm. Mostly cloudy, with a low around 58. Light west wind. Chance of precipitation is 30%.

    Low: 58 °F

    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Tuesday Night

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

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 61. Light and variable wind.
Saturday
A chance of showers, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 77. South wind 3 to 6 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers likely and possibly a thunderstorm before 11pm, then a chance of showers. Mostly cloudy, with a low around 64. Light and variable wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A slight chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 77. Calm wind becoming west 5 to 7 mph in the morning. Chance of precipitation is 20%.
Sunday Night
A slight chance of showers and thunderstorms, then a chance of showers after 8pm. Mostly cloudy, with a low around 58. Light west wind. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 70.
Monday Night
Mostly clear, with a low around 49.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 62.
Thursday
Showers likely. Partly sunny, with a high near 78. Chance of precipitation is 60%.
Thursday Night
Showers likely. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Friday
A chance of showers. Partly sunny, with a high near 73. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Casselman PA
 39.88°N 79.2°W (Elev. 2159 ft)
Last Update:
2:21 pm EDT Sep 11, 2026
Forecast Valid:
6pm EDT Sep 11, 2026-6pm EDT Sep 18, 2026
 
Forecast Discussion
 
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Additional Resources

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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