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

68°F

20°C

Humidity 70%
Wind Speed Calm
Barometer 29.94 in (1013.5 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 16 May 8:53 pm EDT
Extended Forecast for

Selinsgrove, Penn Valley Airport PA

  • Tonight

    Tonight: A chance of showers, mainly before 10pm. Mostly cloudy, with a low around 59. Southwest wind around 6 mph becoming calm after midnight. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon.

    High: 85 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 60. Calm wind.

    Low: 60 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 90. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 90 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly clear, with a low around 64. South wind around 5 mph becoming calm after midnight.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Chance of precipitation is 20%.

    High: 92 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 89. Chance of precipitation is 80%.

    High: 89 °F

    Chance
    Showers then
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 54. Chance of precipitation is 80%.

    Low: 54 °F

    Showers then
    Chance
    Showers

Detailed Forecast

Tonight
A chance of showers, mainly before 10pm. Mostly cloudy, with a low around 59. Southwest wind around 6 mph becoming calm after midnight. Chance of precipitation is 30%.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 60. Calm wind.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 90. Calm wind becoming south 5 to 8 mph in the afternoon.
Monday Night
Mostly clear, with a low around 64. South wind around 5 mph becoming calm after midnight.
Tuesday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 89. Chance of precipitation is 80%.
Wednesday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 54. Chance of precipitation is 80%.
Thursday
Partly sunny, with a high near 67.
Thursday Night
Mostly cloudy, with a low around 47.
Friday
A chance of showers. Partly sunny, with a high near 67. Chance of precipitation is 30%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 49. Chance of precipitation is 30%.
Saturday
A chance of showers. Mostly cloudy, with a high near 68. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Selinsgrove, Penn Valley Airport PA
 40.83°N 76.86°W (Elev. 492 ft)
Last Update:
8:06 pm EDT May 16, 2026
Forecast Valid:
9pm EDT May 16, 2026-6pm EDT May 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation