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

29°F

-2°C

Humidity 96%
Wind Speed Calm
Barometer 30.14 in (1021.0 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 7 Nov 12:53 am EST
Extended Forecast for

Herndon PA

  • Overnight

    Overnight: Partly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 60. Light southeast wind becoming south 9 to 14 mph in the morning. Winds could gust as high as 28 mph.

    High: 60 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Showers likely, mainly before 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 47. South wind 5 to 9 mph becoming light southwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 47 °F

    Showers
    Likely then
    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 63. Northwest wind 3 to 6 mph.

    High: 63 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers after 1am. Mostly cloudy, with a low around 42. Calm wind. Chance of precipitation is 20%.

    Low: 42 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: Showers likely. Mostly cloudy, with a high near 61. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 61 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers. Mostly cloudy, with a low around 36. Chance of precipitation is 50%.

    Low: 36 °F

    Chance
    Showers

  • Monday

    Monday: Partly sunny, with a high near 46.

    High: 46 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 32. Calm wind.
Friday
Mostly cloudy, with a high near 60. Light southeast wind becoming south 9 to 14 mph in the morning. Winds could gust as high as 28 mph.
Friday Night
Showers likely, mainly before 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 47. South wind 5 to 9 mph becoming light southwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Mostly sunny, with a high near 63. Northwest wind 3 to 6 mph.
Saturday Night
A slight chance of showers after 1am. Mostly cloudy, with a low around 42. Calm wind. Chance of precipitation is 20%.
Sunday
Showers likely. Mostly cloudy, with a high near 61. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 36. Chance of precipitation is 50%.
Monday
Partly sunny, with a high near 46.
Monday Night
Partly cloudy, with a low around 27.
Veterans Day
Mostly sunny, with a high near 44.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
Partly sunny, with a high near 53.
Wednesday Night
Mostly cloudy, with a low around 37.
Thursday
Mostly sunny, with a high near 52.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Herndon PA
 40.72°N 76.85°W (Elev. 397 ft)
Last Update:
1:34 am EST Nov 7, 2025
Forecast Valid:
1am EST Nov 7, 2025-6pm EST Nov 13, 2025
 
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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