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

62°F

17°C

Humidity 90%
Wind Speed S 3 mph
Barometer 29.60 in (1002.3 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 12 Mar 12:53 am EDT
Extended Forecast for

2 Miles WNW Port Trevorton PA

  • Overnight

    Overnight: Showers and possibly a thunderstorm. Low around 36. West wind around 10 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 36 °F

    Showers

  • Thursday

    Thursday: A chance of rain showers before 10am, then a slight chance of snow showers between 10am and 11am. Cloudy, then gradually becoming mostly sunny, with a high near 41. Northwest wind around 16 mph, with gusts as high as 32 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 41 °F

    Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 28. Northwest wind around 6 mph becoming calm in the evening.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of rain after 2pm. Mostly cloudy, with a high near 49. South wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 20%.

    High: 49 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Friday Night

    Friday Night: Partly cloudy, with a low around 33. West wind around 9 mph, with gusts as high as 29 mph.

    Low: 33 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 46.

    High: 46 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Sunday

    Sunday: Cloudy, with a high near 51.

    High: 51 °F

    Cloudy

  • Sunday Night

    Sunday Night: Showers, mainly after 2am. Low around 46. Chance of precipitation is 80%.

    Low: 46 °F

    Chance
    Showers then
    Showers

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Low around 36. West wind around 10 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of rain showers before 10am, then a slight chance of snow showers between 10am and 11am. Cloudy, then gradually becoming mostly sunny, with a high near 41. Northwest wind around 16 mph, with gusts as high as 32 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Mostly clear, with a low around 28. Northwest wind around 6 mph becoming calm in the evening.
Friday
A slight chance of rain after 2pm. Mostly cloudy, with a high near 49. South wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 33. West wind around 9 mph, with gusts as high as 29 mph.
Saturday
Sunny, with a high near 46.
Saturday Night
Mostly cloudy, with a low around 31.
Sunday
Cloudy, with a high near 51.
Sunday Night
Showers, mainly after 2am. Low around 46. Chance of precipitation is 80%.
Monday
Showers, mainly before 2pm. High near 55. Chance of precipitation is 80%.
Monday Night
A chance of showers. Partly cloudy, with a low around 24. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 33.
Tuesday Night
Mostly clear, with a low around 19.
Wednesday
Mostly sunny, with a high near 37.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Port Trevorton PA
 40.71°N 76.97°W (Elev. 600 ft)
Last Update:
8:16 pm EDT Mar 11, 2026
Forecast Valid:
1am EDT Mar 12, 2026-6pm EDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation