Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

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

Fog/Mist

39°F

4°C

Humidity 96%
Wind Speed Calm
Barometer 29.81 in (1009.7 mb)
Dewpoint 38°F (3°C)
Visibility 4.00 mi
Last update 11 Jan 1:53 am EST
Detailed forecast for

Northumberland County

Rest Of Tonight
Mostly cloudy. Patchy fog. Lows in the lower 30s. West winds 5 to 10 mph with gusts up to 20 mph.
Sunday
Mostly sunny. Scattered snow showers along with locally heavier snow squalls in the afternoon. Snow may be heavy at times in the afternoon. Little or no snow accumulation. Highs in the upper 30s. West winds 10 to 15 mph. Gusts up to 25 mph, increasing to 35 mph in the afternoon. Chance of snow 50 percent.
Sunday Night
Mostly cloudy in the evening, then clearing. Lows in the upper 20s. West winds 10 to 15 mph with gusts up to 35 mph.
Monday
Mostly sunny. Highs in the upper 30s. West winds 5 to 10 mph with gusts up to 20 mph.
Monday Night
Partly cloudy. Lows in the upper 20s. Southwest winds around 5 mph. Gusts up to 20 mph in the evening.
Tuesday
Sunny in the morning, then becoming partly sunny. Highs in the mid 40s.
Tuesday Night
Mostly cloudy. Lows in the mid 30s.
Wednesday
Mostly cloudy with a 40 percent chance of showers. Highs in the mid 40s.
Wednesday Night
Mostly cloudy with a chance of rain showers. Cooler with lows in the mid 20s. Chance of rain 40 percent.
Thursday
Partly sunny. A chance of snow showers in the morning. Cooler with highs in the lower 30s. Chance of snow 40 percent.
Thursday Night
Mostly cloudy. Lows around 20.
Friday
Partly sunny. Highs in the lower 30s.
Friday Night
Mostly cloudy. Lows around 20.
Saturday
Partly sunny. Highs in the mid 30s.



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130 AM EST Sun Jan 11 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database