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.

Fair

51°F

11°C

Humidity 96%
Wind Speed Calm
Barometer 29.83 in (1010.1 mb)
Dewpoint 50°F (10°C)
Visibility 7.00 mi
Last update 9 May 11:53 pm EDT
Extended Forecast for

Port Trevorton PA

  • Overnight

    Overnight: Patchy fog. Otherwise, increasing clouds, with a low around 48. Light south wind.

    Low: 48 °F

    Patchy Fog

  • Sunday

    Sunday: Isolated showers between 1pm and 2pm. Mostly cloudy, with a high near 70. Light and variable wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    High: 70 °F

    Mostly Cloudy
    then Isolated
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 44. Northwest wind around 5 mph becoming calm after midnight.

    Low: 44 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 63. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 63 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 40. North wind around 5 mph becoming calm in the evening.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 2am. Mostly cloudy, with a low around 47. Chance of precipitation is 30%.

    Low: 47 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers, mainly after 8am. High near 63. Chance of precipitation is 90%.

    High: 63 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers, mainly before 2am. Low around 48. Chance of precipitation is 80%.

    Low: 48 °F

    Showers

Detailed Forecast

Overnight
Patchy fog. Otherwise, increasing clouds, with a low around 48. Light south wind.
Sunday
Isolated showers between 1pm and 2pm. Mostly cloudy, with a high near 70. Light and variable wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Sunday Night
Mostly cloudy, with a low around 44. Northwest wind around 5 mph becoming calm after midnight.
Monday
Partly sunny, with a high near 63. Calm wind becoming west 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 40. North wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 64.
Tuesday Night
A chance of showers after 2am. Mostly cloudy, with a low around 47. Chance of precipitation is 30%.
Wednesday
Showers, mainly after 8am. High near 63. Chance of precipitation is 90%.
Wednesday Night
Showers, mainly before 2am. Low around 48. Chance of precipitation is 80%.
Thursday
Showers likely, mainly after 2pm. Partly sunny, with a high near 63. Chance of precipitation is 60%.
Thursday Night
Showers likely. Mostly cloudy, with a low around 47. Chance of precipitation is 60%.
Friday
Partly sunny, with a high near 68.
Friday Night
Mostly cloudy, with a low around 49.
Saturday
Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port Trevorton PA
 40.7°N 76.91°W (Elev. 600 ft)
Last Update:
12:35 am EDT May 10, 2026
Forecast Valid:
12am EDT May 10, 2026-6pm EDT May 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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