Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

Lat: 40.82° N Lon: 76.87° W Elev: 443 ft.

Fair

40°F

4°C

Humidity 97%
Wind Speed N 6 mph
Barometer 30.31 in (1026.6 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 23 Oct 6:53 am EDT
Detailed forecast for

Northumberland County

Today
Sunny. Highs in the lower 60s. Northeast winds 5 to 10 mph.
Tonight
Mostly clear. Widespread frost after midnight. Lows in the lower 30s. Light and variable winds.
Saturday
Widespread frost in the morning. Sunny. Highs around 60. Light and variable winds.
Saturday Night
Clear. Areas of frost after midnight. Lows in the lower 30s. Light and variable winds.
Sunday
Areas of frost with patchy fog in the morning. Sunny. Highs in the lower 60s. Light and variable winds, becoming southwest around 5 mph in the afternoon.
Sunday Night
Mostly clear. Lows in the mid 30s.
Monday
Sunny. Highs in the upper 60s.
Monday Night
Mostly clear. Lows in the lower 40s.
Tuesday
Sunny. Highs in the lower 60s.
Tuesday Night
Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 30s.
Wednesday
Partly sunny. Highs in the upper 50s.
Wednesday Night
Mostly cloudy. Lows around 40.
Thursday
Mostly sunny. Highs in the mid 60s.



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730 AM EDT Fri Oct 23 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database