National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

Fair

38°F

3°C

Humidity 62%
Wind Speed SW 7 mph
Barometer 29.89 in (1012.6 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 11 Jan 9:53 am EST
Extended Forecast for

Herndon PA

  • Today

    Today: Scattered snow showers between 1pm and 3pm. The snow could be heavy at times. Partly sunny, with a high near 41. West wind 7 to 16 mph, with gusts as high as 32 mph. Chance of precipitation is 40%.

    High: 41 °F

    Mostly Sunny
    then Heavy
    Snow

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 27. West wind 11 to 15 mph, with gusts as high as 33 mph.

    Low: 27 °F

    Decreasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 41. West wind 6 to 8 mph.

    High: 41 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 46. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 46 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers. Mostly cloudy, with a high near 47. Chance of precipitation is 40%.

    High: 47 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers. Mostly cloudy, with a low around 26. Chance of precipitation is 40%.

    Low: 26 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of snow showers before 1pm. Partly sunny, with a high near 32. Chance of precipitation is 30%.

    High: 32 °F

    Chance Snow
    Showers

Detailed Forecast

Today
Scattered snow showers between 1pm and 3pm. The snow could be heavy at times. Partly sunny, with a high near 41. West wind 7 to 16 mph, with gusts as high as 32 mph. Chance of precipitation is 40%.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 27. West wind 11 to 15 mph, with gusts as high as 33 mph.
Monday
Mostly sunny, with a high near 41. West wind 6 to 8 mph.
Monday Night
Partly cloudy, with a low around 28. Calm wind.
Tuesday
Mostly sunny, with a high near 46. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
A chance of showers. Mostly cloudy, with a high near 47. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 26. Chance of precipitation is 40%.
Thursday
A chance of snow showers before 1pm. Partly sunny, with a high near 32. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 18.
Friday
Partly sunny, with a high near 33.
Friday Night
Mostly cloudy, with a low around 18.
Saturday
Partly sunny, with a high near 35.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Herndon PA
 40.72°N 76.85°W (Elev. 397 ft)
Last Update:
8:11 am EST Jan 11, 2026
Forecast Valid:
10am EST Jan 11, 2026-6pm EST Jan 17, 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