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.

Fog/Mist

56°F

13°C

Humidity 100%
Wind Speed Calm
Barometer 30.06 in (1017.7 mb)
Dewpoint 56°F (13°C)
Visibility 1.00 mi
Last update 22 Aug 1:53 am EDT
Extended Forecast for

Trevorton PA

  • Overnight

    Overnight: Partly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms, mainly between 2pm and 3pm. Mostly sunny, with a high near 76. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 76 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after midnight. Low around 62. Southeast wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Showers

  • Sunday

    Sunday: A chance of showers before 2pm, then a slight chance of showers and thunderstorms between 2pm and 3pm. Mostly sunny, with a high near 75. West wind 5 to 7 mph, with gusts as high as 20 mph. 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 then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 56. Southwest wind 3 to 5 mph.

    Low: 56 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 56. Calm wind.
Saturday
A chance of showers and thunderstorms, mainly between 2pm and 3pm. Mostly sunny, with a high near 76. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 30%.
Saturday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after midnight. Low around 62. Southeast wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers before 2pm, then a slight chance of showers and thunderstorms between 2pm and 3pm. Mostly sunny, with a high near 75. West wind 5 to 7 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Mostly clear, with a low around 56. Southwest wind 3 to 5 mph.
Monday
Mostly sunny, with a high near 71.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Mostly sunny, with a high near 78.
Wednesday Night
Partly cloudy, with a low around 62.
Thursday
Showers likely. Partly sunny, with a high near 79. Chance of precipitation is 60%.
Thursday Night
Showers likely. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Friday
A chance of showers. Partly sunny, with a high near 80. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Trevorton PA
 40.79°N 76.69°W (Elev. 1201 ft)
Last Update:
2:21 am EDT Aug 22, 2026
Forecast Valid:
2am EDT Aug 22, 2026-6pm EDT Aug 28, 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