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

Hazardous Weather Conditions

Current conditions at

Somerset County Airport (K2G9)

Lat: 40.04°NLon: 79.02°WElev: 2275ft.

Fog

61°F

16°C

Humidity 100%
Wind Speed Calm
Barometer 30.24 in
Dewpoint 61°F (16°C)
Visibility 0.15 mi
Last update 15 Aug 7:35 am EDT
Extended Forecast for

Jennerstown PA

Dense Fog Advisory until August 15, 09:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory until August 15, 09:00am

    NOW until 9:00am Sat

    Dense Fog Advisory

  • Today

    High: 81 °F

    Clearing

  • Tonight

    Tonight: A chance of showers, mainly after 3am. Mostly cloudy, with a low around 65. Light south wind. Chance of precipitation is 30%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 65 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then showers and possibly a thunderstorm after 5pm. High near 78. Southeast wind 5 to 9 mph becoming west in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    High: 78 °F

    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 66. West wind 6 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 66 °F

    Showers

  • Monday

    Monday: Showers likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 77. Northwest wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A chance of showers before 8pm. Partly cloudy, with a low around 57. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

Detailed Forecast

Today
Cloudy through mid morning, then clearing, with a high near 81. Light southeast wind.
Tonight
A chance of showers, mainly after 3am. Mostly cloudy, with a low around 65. Light south wind. Chance of precipitation is 30%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Showers and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then showers and possibly a thunderstorm after 5pm. High near 78. Southeast wind 5 to 9 mph becoming west in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Sunday Night
Showers and possibly a thunderstorm. Low around 66. West wind 6 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Showers likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 77. Northwest wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A chance of showers before 8pm. Partly cloudy, with a low around 57. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 79.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.
Thursday
A chance of showers. Partly sunny, with a high near 75. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Jennerstown PA
 40.15°N 79.07°W (Elev. 1949 ft)
Last Update:
6:41 am EDT Aug 15, 2026
Forecast Valid:
8am EDT Aug 15, 2026-6pm EDT Aug 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