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.

Mostly Cloudy

77°F

25°C

Humidity 66%
Wind Speed SE 6 mph
Barometer 29.93 in (1013.3 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 22 Aug 3:53 pm EDT
Extended Forecast for

Swengel PA

  • This Afternoon

    This Afternoon: A slight chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 78. South wind around 6 mph. Chance of precipitation is 20%.

    High: 78 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms before 3am, then showers likely. Low around 64. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 64 °F

    Chance
    T-storms then
    Showers

  • Sunday

    Sunday: A chance of showers, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 78. Light southwest wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 78 °F

    Chance
    Showers then
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 57. West wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 74. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 74 °F

    Mostly Sunny

  • Monday Night

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

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A slight chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 78. South wind around 6 mph. Chance of precipitation is 20%.
Tonight
Showers and thunderstorms before 3am, then showers likely. Low around 64. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
A chance of showers, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 78. Light southwest wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Mostly clear, with a low around 57. West wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 74. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 63.
Thursday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 81. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.
Friday
A chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 40%.
Friday Night
A chance of showers. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Swengel PA
 40.94°N 77.05°W (Elev. 600 ft)
Last Update:
2:39 pm EDT Aug 22, 2026
Forecast Valid:
3pm EDT Aug 22, 2026-6pm EDT Aug 29, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation