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Current conditions at
Selinsgrove Penn Valley Airport (KSEG)
Lat: 40.82°NLon: 76.87°WElev: 443ft.
A Few Clouds
84°F
29°C
| Humidity | 48% |
| Wind Speed | Vrbl 3 mph |
| Barometer | 29.98 in (1014.7 mb) |
| Dewpoint | 62°F (17°C) |
| Visibility | 10.00 mi |
| Heat Index | 85°F (29°C) |
| Last update | 31 Jul 2:53 pm EDT |
Extended Forecast for
Herndon PA
Tonight
Low: 62 °F
Partly Cloudy
Saturday
High: 87 °F
Partly Sunny
Saturday Night
Low: 69 °F
Mostly Cloudy
Sunday
High: 83 °F
Chance
ShowersSunday Night
Low: 68 °F
Showers
Monday
High: 81 °F
Showers
LikelyMonday Night
Low: 65 °F
Chance
T-storms then
Chance
ShowersTuesday
High: 83 °F
Partly Sunny
then Chance
T-stormsTuesday Night
Low: 65 °F
Chance
T-storms then
Chance
Showers
Detailed Forecast
Tonight
Partly cloudy, with a low around 62. Calm wind.
Saturday
Partly sunny, with a high near 87. Calm wind becoming south 5 to 7 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 69. Southeast wind around 7 mph.
Sunday
A chance of showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 83. South wind 6 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 5am, then showers likely after 5am. Low around 68. Southeast wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Showers likely, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 81. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.
Tuesday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 50%.
Tuesday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.
Wednesday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Herndon PA
40.72°N 76.85°W (Elev. 397 ft)
40.72°N 76.85°W (Elev. 397 ft)
2:56 pm EDT Jul 31, 2026
3pm EDT Jul 31, 2026-6pm EDT Aug 7, 2026
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