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.

Overcast

65°F

18°C

Humidity 90%
Wind Speed NE 3 mph
Barometer 30.05 in (1017.3 mb)
Dewpoint 62°F (17°C)
Visibility 7.00 mi
Last update 14 Jun 4:53 pm EDT
Extended Forecast for

Herndon PA

  • This Afternoon

    This Afternoon: Showers likely. Cloudy, with a high near 69. Light east wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 69 °F

    Showers
    Likely

  • Tonight

    Tonight: A chance of showers. Patchy fog after 11pm. Otherwise, cloudy, with a low around 59. Calm wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 59 °F

    Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: A chance of showers before noon, then a chance of showers after 4pm. Patchy fog before 1pm. Otherwise, cloudy, with a high near 69. Light east wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 69 °F

    Chance
    Showers and
    Patchy Fog

  • Sunday Night

    Sunday Night: A chance of showers, mainly after 2am. Patchy fog between 11pm and 3am. Otherwise, mostly cloudy, with a low around 60. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 60 °F

    Chance
    Showers and
    Patchy Fog

  • Monday

    Monday: A chance of showers, mainly before 2pm. Cloudy, with a high near 72. Light southeast wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 72 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 20%.

    Low: 62 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers after 2pm. Mostly cloudy, with a high near 76. Chance of precipitation is 40%.

    High: 76 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 50%.

    High: 87 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

This Afternoon
Showers likely. Cloudy, with a high near 69. Light east wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A chance of showers. Patchy fog after 11pm. Otherwise, cloudy, with a low around 59. Calm wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A chance of showers before noon, then a chance of showers after 4pm. Patchy fog before 1pm. Otherwise, cloudy, with a high near 69. Light east wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A chance of showers, mainly after 2am. Patchy fog between 11pm and 3am. Otherwise, mostly cloudy, with a low around 60. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A chance of showers, mainly before 2pm. Cloudy, with a high near 72. Light southeast wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 20%.
Tuesday
A chance of showers after 2pm. Mostly cloudy, with a high near 76. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Wednesday
A chance of showers after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 50%.
Wednesday Night
A chance of showers before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Partly cloudy, with a low around 69. Chance of precipitation is 30%.
Juneteenth
Showers likely. Partly sunny, with a high near 88. Chance of precipitation is 70%.
Thursday Night
Showers likely. Partly cloudy, with a low around 64. Chance of precipitation is 60%.
Friday
Sunny, with a high near 83.
Friday Night
Partly cloudy, with a low around 62.
Saturday
Mostly sunny, with a high near 86.
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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:
4:59 pm EDT Jun 14, 2025
Forecast Valid:
5pm EDT Jun 14, 2025-6pm EDT Jun 21, 2025
 
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