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.

A Few Clouds

69°F

21°C

Humidity 76%
Wind Speed N 5 mph
Barometer 30.15 in (1020.9 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 21 Aug 11:53 am EDT
Extended Forecast for

Swengel PA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 77. Calm wind.

    High: 77 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 58. Calm wind.

    Low: 58 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 4pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 75. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Chance
    Showers and
    Patchy Fog

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Patchy fog after 2am. Low around 64. Light southeast wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Showers and
    Patchy Fog

  • Sunday

    Sunday: Partly sunny, with a high near 77. Calm wind becoming west 5 to 8 mph in the morning.

    High: 77 °F

    Partly Sunny

  • Sunday Night

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

    Low: 57 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Monday Night

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

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 77. Calm wind.
Tonight
Partly cloudy, with a low around 58. Calm wind.
Saturday
A chance of showers, with thunderstorms also possible after 4pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 75. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm. Patchy fog after 2am. Low around 64. Light southeast wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Partly sunny, with a high near 77. Calm wind becoming west 5 to 8 mph in the morning.
Sunday Night
Mostly clear, with a low around 57.
Monday
Sunny, with a high near 74.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Sunny, with a high near 76.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.
Thursday
Showers likely. Partly sunny, with a high near 79. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Swengel PA
 40.94°N 77.1°W (Elev. 741 ft)
Last Update:
12:20 pm EDT Aug 21, 2026
Forecast Valid:
12pm EDT Aug 21, 2026-6pm EDT Aug 27, 2026
 
Forecast Discussion
 
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Additional Resources

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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