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

70°F

21°C

Humidity 57%
Wind Speed Vrbl 7 G 21 mph
Barometer 29.73 in (1006.5 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 19 Jun 12:53 am EDT
Extended Forecast for

4 Miles NNE Thompsontown PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 59. West wind 6 to 8 mph.

    Low: 59 °F

    Mostly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 78. West wind 6 to 10 mph, with gusts as high as 22 mph.

    High: 78 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57. West wind 5 to 9 mph, with gusts as high as 21 mph.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 77. West wind 8 to 11 mph, with gusts as high as 23 mph.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 57. West wind 5 to 7 mph becoming calm in the evening.

    Low: 57 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers after 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.

    Low: 59 °F

    Partly Cloudy
    then Chance
    Showers

  • Monday

    Monday: Showers, with thunderstorms also possible after 2pm. High near 76. Chance of precipitation is 80%.

    High: 76 °F

    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.

    Low: 59 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 59. West wind 6 to 8 mph.
Juneteenth
Mostly sunny, with a high near 78. West wind 6 to 10 mph, with gusts as high as 22 mph.
Friday Night
Mostly clear, with a low around 57. West wind 5 to 9 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 77. West wind 8 to 11 mph, with gusts as high as 23 mph.
Saturday Night
Mostly clear, with a low around 57. West wind 5 to 7 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 80.
Sunday Night
A chance of showers after 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.
Monday
Showers, with thunderstorms also possible after 2pm. High near 76. Chance of precipitation is 80%.
Monday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 79. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Thompsontown PA
 40.62°N 77.19°W (Elev. 715 ft)
Last Update:
8:55 pm EDT Jun 18, 2026
Forecast Valid:
12am EDT Jun 19, 2026-6pm EDT Jun 25, 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