Current conditions at
Selinsgrove Penn Valley Airport (KSEG)
Lat: 40.82°NLon: 76.87°WElev: 443ft.
Fair
35°F
2°C
| Humidity | 100% |
| Wind Speed | NW 3 mph |
| Barometer | 30.02 in (1016.7 mb) |
| Dewpoint | 35°F (2°C) |
| Visibility | 10.00 mi |
| Last update | 10 Mar 5:53 am EDT |
Extended Forecast for
Herndon PA
Today

High: 74 °F
Sunny
Tonight
Low: 54 °F
Partly Cloudy
then Slight
Chance
ShowersWednesday

High: 74 °F
Showers and
Patchy FogWednesday Night

Low: 43 °F
Showers
Thursday

High: 45 °F
Chance
Rain/SnowThursday Night

Low: 29 °F
Mostly Clear
Friday
High: 49 °F
Partly Sunny
then Chance
ShowersFriday Night
Low: 33 °F
Chance
Showers then
Mostly CloudySaturday

High: 48 °F
Mostly Sunny
Detailed Forecast
Today
Sunny, with a high near 74. Calm wind becoming southwest around 6 mph in the afternoon.
Tonight
A slight chance of showers between 4am and 5am. Partly cloudy, with a low around 54. Calm wind. Chance of precipitation is 20%.
Wednesday
Showers likely, then showers and possibly a thunderstorm after 11am. Patchy fog before 9am. High near 74. Calm wind becoming south 5 to 9 mph in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers. Low around 43. South wind 7 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A chance of rain showers, mixing with snow after 11am, then gradually ending. Mostly cloudy, with a high near 45. Northwest wind around 14 mph, with gusts as high as 37 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Mostly clear, with a low around 29.
Friday
A chance of showers after 2pm. Mostly cloudy, with a high near 49. Chance of precipitation is 30%.
Friday Night
A chance of showers before 8pm. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 48.
Saturday Night
Mostly cloudy, with a low around 35.
Sunday
Cloudy, with a high near 58.
Sunday Night
Showers. Low around 41. Chance of precipitation is 80%.
Monday
Rain and snow showers. High near 50. Chance of precipitation is 80%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Herndon PA
40.72°N 76.85°W (Elev. 397 ft)
40.72°N 76.85°W (Elev. 397 ft)
6:41 am EDT Mar 10, 2026
6am EDT Mar 10, 2026-6pm EDT Mar 16, 2026


