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

65°F

18°C

Humidity 93%
Wind Speed Calm
Barometer 30.02 in (1016.1 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 20 May 1:53 am EDT
Extended Forecast for

Trevorton PA

  • Overnight

    Overnight: Mostly clear, with a low around 67. Southwest wind around 5 mph.

    Low: 67 °F

    Mostly Clear

  • Wednesday

    Wednesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. High near 82. Northwest wind 5 to 7 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Chance
    Showers then
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 3am, then a chance of showers. Cloudy, with a low around 52. North wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 52 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, mainly before 11am. Mostly cloudy, with a high near 66. North wind 5 to 7 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 66 °F

    Chance
    Showers then
    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 48. Light northeast wind.

    Low: 48 °F

    Partly Cloudy

  • Friday

    Friday: A chance of rain. Mostly cloudy, with a high near 63. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 63 °F

    Chance Rain

  • Friday Night

    Friday Night: Rain. Low around 47. Chance of precipitation is 80%.

    Low: 47 °F

    Rain

  • Saturday

    Saturday: Rain. High near 53. Chance of precipitation is 90%.

    High: 53 °F

    Rain

  • Saturday Night

    Saturday Night: Rain. Low around 49. Chance of precipitation is 80%.

    Low: 49 °F

    Rain

Detailed Forecast

Overnight
Mostly clear, with a low around 67. Southwest wind around 5 mph.
Wednesday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. High near 82. Northwest wind 5 to 7 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm before 3am, then a chance of showers. Cloudy, with a low around 52. North wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers, mainly before 11am. Mostly cloudy, with a high near 66. North wind 5 to 7 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Partly cloudy, with a low around 48. Light northeast wind.
Friday
A chance of rain. Mostly cloudy, with a high near 63. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Rain. Low around 47. Chance of precipitation is 80%.
Saturday
Rain. High near 53. Chance of precipitation is 90%.
Saturday Night
Rain. Low around 49. Chance of precipitation is 80%.
Sunday
Rain likely before 8am, then a chance of showers after 8am. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 50%.
Memorial Day
A chance of showers. Mostly cloudy, with a high near 73. Chance of precipitation is 30%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 74. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Trevorton PA
 40.79°N 76.66°W (Elev. 873 ft)
Last Update:
12:51 am EDT May 20, 2026
Forecast Valid:
2am EDT May 20, 2026-6pm EDT May 26, 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