Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Central U.S. and Northeast; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Severe thunderstorms are forecast from parts of the central High Plains into the Upper Midwest, and across parts of the Northeast. Critical fire weather conditions will continue across portions of the Four Corners and Great Basin. Read More >

Current conditions at

Selinsgrove Penn Valley Airport (KSEG)

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

A Few Clouds

88°F

31°C

Humidity 57%
Wind Speed Vrbl 7 mph
Barometer 30.06 in (1017.5 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 30 Jun 1:53 pm EDT
Detailed forecast for

Snyder County

This Afternoon
Mostly sunny. Hot with highs in the upper 80s. South winds 5 to 10 mph.
Tonight
Partly cloudy. Warm with lows around 70. South winds 5 to 10 mph.
Wednesday
Sunny, hot with highs in the mid 90s. Southwest winds around 5 mph. Heat index values between 105 and 110 in the afternoon.
Wednesday Night
Mostly clear. Warm with lows in the mid 70s. West winds around 5 mph. Heat index values between 105 and 110 early in the evening.
Thursday
Sunny. Very hot. Humid with highs in the upper 90s. West winds 5 to 10 mph. Heat index values between 105 and 110.
Thursday Night
Mostly clear. Humid. Very warm with lows in the mid 70s. Heat index values up to 105 early in the evening.
Friday
Sunny . Very hot with highs in the upper 90s. Heat index values up to 105.
Friday Night
Partly cloudy with a chance of showers and thunderstorms. Humid, warm with lows in the lower 70s. Chance of rain 30 percent. Heat index values up to 105 early in the evening.
Independence Day
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Humid, hot with highs in the lower 90s. Chance of rain 40 percent.
Saturday Night
Mostly cloudy in the evening, then becoming partly cloudy. A chance of showers and thunderstorms. Humid with lows in the upper 60s. Chance of rain 40 percent.
Sunday
Partly sunny. A chance of showers and thunderstorms in the afternoon. Humid, hot with highs in the lower 90s. Chance of rain 40 percent.
Sunday Night
A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the upper 60s. Chance of rain 40 percent.
Monday
Partly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Humid. Very warm with highs in the mid 80s. Chance of rain 40 percent.



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130 PM EDT Tue Jun 30 2026
 
 

Additional Resources

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