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

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

Fair

66°F

19°C

Humidity 93%
Wind Speed Calm
Barometer 30.16 in (1021.0 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 15 Aug 9:53 pm EDT
Extended Forecast for

Swengel PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm. High near 77. Calm wind becoming south 5 to 8 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    High: 77 °F

    Showers

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 2am, then a chance of showers between 2am and 3am. Low around 68. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 68 °F

    Showers then
    Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Calm wind becoming northwest around 6 mph in the morning. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Partly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers before 8pm. Mostly clear, with a low around 63. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 63 °F

    Chance
    Showers then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 66. Calm wind.
Sunday
Showers and possibly a thunderstorm, mainly before 5pm, then a chance of showers and thunderstorms after 5pm. High near 77. Calm wind becoming south 5 to 8 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Sunday Night
Showers and thunderstorms before 2am, then a chance of showers between 2am and 3am. Low around 68. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Calm wind becoming northwest around 6 mph in the morning. Chance of precipitation is 50%. 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. Mostly clear, with a low around 63. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Sunny, with a high near 82.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Sunny, with a high near 83.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Thursday
A chance of showers before 2pm. Mostly sunny, with a high near 79. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 77.
Friday Night
Partly cloudy, with a low around 60.
Saturday
A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Swengel PA
 40.96°N 77.07°W (Elev. 696 ft)
Last Update:
9:46 pm EDT Aug 15, 2026
Forecast Valid:
10pm EDT Aug 15, 2026-6pm EDT Aug 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation