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

54°F

12°C

Humidity 93%
Wind Speed Calm
Barometer 29.87 in (1011.1 mb)
Dewpoint 52°F (11°C)
Visibility 8.00 mi
Last update 20 Jun 4:53 am EDT
Extended Forecast for

3 Miles NE Thompsontown PA

  • Today

    Today: Mostly sunny, with a high near 77. West wind 6 to 10 mph, with gusts as high as 23 mph.

    High: 77 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 57. West wind 5 to 7 mph becoming calm in the evening.

    Low: 57 °F

    Partly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 80. West wind 3 to 7 mph.

    High: 80 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Rain likely after 2am. Mostly cloudy, with a low around 60. Calm wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 60 °F

    Mostly Cloudy
    then Rain
    Likely

  • Monday

    Monday: Rain, with thunderstorms also possible after 11am. High near 74. East wind around 6 mph becoming south in the afternoon. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 74 °F

    Rain

  • Monday Night

    Monday Night: A chance of rain and thunderstorms before 8pm, then a chance of rain between 8pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Chance
    T-storms then
    Chance Rain

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 77. West wind 6 to 10 mph, with gusts as high as 23 mph.
Tonight
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 57. West wind 5 to 7 mph becoming calm in the evening.
Sunday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 80. West wind 3 to 7 mph.
Sunday Night
Rain likely after 2am. Mostly cloudy, with a low around 60. Calm wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Rain, with thunderstorms also possible after 11am. High near 74. East wind around 6 mph becoming south in the afternoon. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Monday Night
A chance of rain and thunderstorms before 8pm, then a chance of rain between 8pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
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
A chance of showers after 2am. Partly cloudy, with a low around 59. Chance of precipitation is 30%.
Thursday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 80. Chance of precipitation is 60%.
Thursday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Thompsontown PA
 40.6°N 77.19°W (Elev. 833 ft)
Last Update:
2:16 am EDT Jun 20, 2026
Forecast Valid:
5am EDT Jun 20, 2026-6pm EDT Jun 26, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation