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Severe Weather of July 18th, 2026

Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

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

Fair

57°F

14°C

Humidity	100%
Wind Speed	NW 3 mph
Barometer	30.15 in (1020.6 mb)
Dewpoint	57°F (14°C)
Visibility	8.00 mi
Last update	25 Jul 2:53 am EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Detailed forecast for

Union County

Rest Of Tonight

Clear. Near steady temperature in the upper 50s. Light and variable winds.

Saturday

Sunny. Highs in the lower 80s. Southeast winds around 5 mph.

Saturday Night

Partly cloudy. Lows around 60. Southeast winds around 5 mph in the evening, becoming light and variable.

Sunday

Mostly sunny. A chance of showers in the afternoon. Highs in the lower 80s. Light and variable winds, becoming south around 5 mph in the afternoon. Chance of rain 40 percent.

Sunday Night

Mostly cloudy with a chance of showers in the evening, then partly cloudy after midnight. Lows in the lower 60s. Southwest winds around 5 mph in the evening, becoming light and variable. Chance of rain 40 percent.

Monday

Partly sunny. Showers likely with a chance of thunderstorms in the afternoon. Humid. Very warm with highs in the mid 80s. Chance of rain 60 percent.

Monday Night

Showers likely with a chance of thunderstorms in the evening, then showers after midnight. Humid with lows in the mid 60s. Chance of rain 90 percent.

Tuesday

Showers. A chance of thunderstorms in the afternoon. Humid with highs in the lower 80s. Chance of rain 90 percent.

Tuesday Night

Mostly cloudy. Showers with a chance of thunderstorms in the evening, then a chance of showers after midnight. Humid with lows in the lower 60s. Chance of rain 90 percent.

Wednesday

Partly sunny with a chance of showers. Humid with highs in the upper 70s. Chance of rain 50 percent.

Wednesday Night

Partly cloudy. A chance of showers in the evening. Lows in the lower 60s. Chance of rain 50 percent.

Thursday

Mostly sunny. Highs around 80.

Thursday Night

Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 60s.

Friday

Sunny. Highs in the lower 80s.