Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82°NLon: 76.87°WElev: 443ft.

Fair

81°F

27°C

Humidity 44%
Wind Speed SW 7 mph
Barometer 29.73 in (1006.5 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 17 Jun 4:53 pm EDT
Extended Forecast for

Herndon PA

  • This Afternoon

    This Afternoon: A slight chance of showers and thunderstorms before 5pm.  Partly sunny, with a high near 82. Southwest wind around 7 mph.  Chance of precipitation is 20%.

    High: 82 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly cloudy, with a low around 65. Calm wind becoming south 5 to 7 mph after midnight. Winds could gust as high as 21 mph.

    Low: 65 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly before noon.  Partly sunny, with a high near 87. South wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 37 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 60. West wind 5 to 10 mph becoming light  after midnight. Winds could gust as high as 25 mph.

    Low: 60 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Sunny, with a high near 81. West wind 5 to 11 mph, with gusts as high as 23 mph.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Saturday Night

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

    Low: 57 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A slight chance of showers and thunderstorms before 5pm. Partly sunny, with a high near 82. Southwest wind around 7 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 65. Calm wind becoming south 5 to 7 mph after midnight. Winds could gust as high as 21 mph.
Thursday
Showers and thunderstorms likely, mainly before noon. Partly sunny, with a high near 87. South wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Partly cloudy, with a low around 60. West wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 25 mph.
Juneteenth
Sunny, with a high near 81. West wind 5 to 11 mph, with gusts as high as 23 mph.
Friday Night
Mostly clear, with a low around 58.
Saturday
Sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 57.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Monday
Showers. High near 77. Chance of precipitation is 80%.
Monday Night
Showers likely. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Tuesday
Mostly sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
Mostly sunny, with a high near 82.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Herndon PA
 40.72°N 76.85°W (Elev. 397 ft)
2:21 pm EDT Jun 17, 2026
4pm EDT Jun 17, 2026-6pm EDT Jun 24, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database