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.

Overcast

43°F

6°C

Humidity 65%
Wind Speed Calm
Barometer 29.75 in (1007.7 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 13 Mar 9:53 pm EDT
Extended Forecast for

Herndon PA

Wind Advisory March 13, 10:20pm until March 14, 11:00am
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory March 13, 10:20pm until March 14, 11:00am

    NOW until 11:00am Sat

    Wind Advisory

  • Tonight

    Low: 34 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 47. West wind 10 to 14 mph, with gusts as high as 37 mph.

    High: 47 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 32. Calm wind.

    Low: 32 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy, with a high near 52. Light southeast wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 28 mph.

    High: 52 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Showers, mainly after 2am. Low around 44. Southeast wind around 10 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 44 °F

    Chance
    Showers then
    Showers

  • Monday

    Monday: Showers, with thunderstorms also possible after 2pm. High near 65. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 65 °F

    Showers

  • Monday Night

    Monday Night: Rain and snow showers likely before 2am. Mostly cloudy, with a low around 26. Chance of precipitation is 70%.

    Low: 26 °F

    Rain/Snow
    Likely

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 32.

    High: 32 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 34. West wind 10 to 13 mph, with gusts as high as 41 mph.
Saturday
Sunny, with a high near 47. West wind 10 to 14 mph, with gusts as high as 37 mph.
Saturday Night
Increasing clouds, with a low around 32. Calm wind.
Sunday
Mostly cloudy, with a high near 52. Light southeast wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 28 mph.
Sunday Night
Showers, mainly after 2am. Low around 44. Southeast wind around 10 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers, with thunderstorms also possible after 2pm. High near 65. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Rain and snow showers likely before 2am. Mostly cloudy, with a low around 26. Chance of precipitation is 70%.
Tuesday
Mostly cloudy, with a high near 32.
Tuesday Night
Partly cloudy, with a low around 19.
Wednesday
Partly sunny, with a high near 38.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
Mostly cloudy, with a high near 46.
Thursday Night
Partly cloudy, with a low around 32.
Friday
Partly sunny, with a high near 49.
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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:
10:01 pm EDT Mar 13, 2026
Forecast Valid:
10pm EDT Mar 13, 2026-6pm EDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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