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.

Overcast

61°F

16°C

Humidity 93%
Wind Speed S 5 mph
Barometer 29.59 in (1001.8 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 12 Mar 1:53 am EDT
Extended Forecast for

2 Miles SSE Port Trevorton PA

  • Overnight

    Overnight: Showers likely, mainly after 5am. Cloudy, with a low around 40. West wind 13 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Showers
    Likely

  • Thursday

    Thursday: Rain showers likely before 10am, then a chance of snow showers between 10am and 1pm. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 37 by 11am. Breezy, with a northwest wind 13 to 20 mph, with gusts as high as 34 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 42 °F⇓

    Rain/Snow
    Likely and
    Breezy then
    Slight Chance
    Snow Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 27. Northwest wind 8 to 13 mph becoming light west after midnight. Winds could gust as high as 21 mph.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: A chance of showers after 2pm. Partly sunny, with a high near 48. South wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 30%.

    High: 48 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers, mainly before 8pm. Partly cloudy, with a low around 33. West wind 15 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.

    Low: 33 °F

    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 52.

    High: 52 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Showers likely, mainly after 2am. Cloudy, with a low around 46. Chance of precipitation is 70%.

    Low: 46 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Overnight
Showers likely, mainly after 5am. Cloudy, with a low around 40. West wind 13 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain showers likely before 10am, then a chance of snow showers between 10am and 1pm. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 37 by 11am. Breezy, with a northwest wind 13 to 20 mph, with gusts as high as 34 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday Night
Mostly clear, with a low around 27. Northwest wind 8 to 13 mph becoming light west after midnight. Winds could gust as high as 21 mph.
Friday
A chance of showers after 2pm. Partly sunny, with a high near 48. South wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers, mainly before 8pm. Partly cloudy, with a low around 33. West wind 15 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 48.
Saturday Night
Mostly cloudy, with a low around 33.
Sunday
Mostly cloudy, with a high near 52.
Sunday Night
Showers likely, mainly after 2am. Cloudy, with a low around 46. Chance of precipitation is 70%.
Monday
Showers. High near 61. Chance of precipitation is 90%.
Monday Night
Rain and snow showers likely. Mostly cloudy, with a low around 25. Chance of precipitation is 60%.
Tuesday
Partly sunny, with a high near 33.
Tuesday Night
Mostly cloudy, with a low around 20.
Wednesday
Mostly sunny, with a high near 37.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Port Trevorton PA
 40.68°N 76.89°W (Elev. 390 ft)
Last Update:
2:31 am EDT Mar 12, 2026
Forecast Valid:
2am EDT Mar 12, 2026-6pm EDT Mar 18, 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