Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

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

Mostly Cloudy

57°F

14°C

Humidity 100%
Wind Speed Calm
Barometer 30.21 in (1022.7 mb)
Dewpoint 57°F (14°C)
Visibility 7.00 mi
Last update 9 Sep 5:53 am EDT
Detailed forecast for

Union County

Today
Partly sunny. A slight chance of showers this afternoon. Very warm with highs in the mid 80s. Southwest winds 5 to 10 mph. Chance of rain 20 percent.
Tonight
Mostly cloudy with a slight chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Warmer with lows around 70. Southwest winds 5 to 10 mph with gusts up to 25 mph. Chance of rain 70 percent.
Thursday
Partly sunny. Humid with highs around 80. West winds 5 to 10 mph.
Thursday Night
Mostly cloudy with a chance of showers in the evening, then partly cloudy after midnight. Cooler with lows in the upper 50s. Northwest winds around 5 mph. Chance of rain 40 percent.
Friday
Sunny. Highs in the mid 70s. Northwest winds around 5 mph.
Friday Night
Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 50s.
Saturday
Partly sunny. A chance of showers in the afternoon. Highs in the mid 70s. Chance of rain 50 percent.
Saturday Night
Mostly cloudy with a chance of showers. Humid. Not as cool with lows in the mid 60s. Chance of rain 50 percent.
Sunday
Mostly cloudy. Humid with highs in the lower 80s.
Sunday Night
Mostly cloudy. Humid with lows in the lower 60s.
Monday
Mostly sunny. Humid with highs around 80.
Monday Night
Partly cloudy. Lows in the mid 60s.
Tuesday
Mostly sunny. A chance of showers in the afternoon. Humid. Very warm with highs in the lower 80s. Chance of rain 40 percent.



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600 AM EDT Wed Sep 9 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database