News Headlines
Current conditions at
Selinsgrove Penn Valley Airport (KSEG)
Lat: 40.82°NLon: 76.87°WElev: 443ft.
Fair
57°F
14°C
| Humidity | 100% |
| Wind Speed | Calm |
| Barometer | 30.15 in (1020.8 mb) |
| Dewpoint | 57°F (14°C) |
| Visibility | 8.00 mi |
| Last update | 4 Aug 12:53 am EDT |
Extended Forecast for
Northumberland PA
Overnight
Low: 55 °F
Patchy Fog
Monday
High: 87 °F
Patchy Fog
then SunnyMonday Night
Low: 60 °F
Partly Cloudy
Tuesday
High: 88 °F
Partly Sunny
Tuesday Night
Low: 66 °F
Mostly Cloudy
Wednesday
High: 84 °F
Partly Sunny
Wednesday Night
Low: 64 °F
Mostly Cloudy
Thursday
High: 82 °F
Partly Sunny
Thursday Night
Low: 62 °F
Partly Cloudy
Detailed Forecast
Overnight
Patchy fog after 2am. Otherwise, mostly clear, with a low around 55. Calm wind.
Monday
Patchy fog before 9am. Otherwise, sunny, with a high near 87. Calm wind.
Monday Night
Partly cloudy, with a low around 60. Calm wind.
Tuesday
Partly sunny, with a high near 88. Calm wind.
Tuesday Night
Mostly cloudy, with a low around 66. Calm wind.
Wednesday
Partly sunny, with a high near 84.
Wednesday Night
Mostly cloudy, with a low around 64.
Thursday
Partly sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 62.
Friday
Mostly sunny, with a high near 83.
Friday Night
Partly cloudy, with a low around 62.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 66.
Sunday
Mostly sunny, with a high near 89.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Northumberland PA
40.89°N 76.79°W (Elev. 482 ft)
40.89°N 76.79°W (Elev. 482 ft)
12:41 pm EDT Aug 3, 2025
12am EDT Aug 4, 2025-6pm EDT Aug 10, 2025
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
