Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Union County Airport - Troy Shelton Field (K35A)

Lat: 34.69° N Lon: 81.64° W Elev: 610 ft.

Fair

74°F

23°C

Humidity 90%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 18 Aug 3:35 am EDT
Detailed forecast for

Union County

Today
Sunny, hot with highs in the mid 90s. Northwest winds around 5 mph. Heat index values up to 102.
Tonight
Mostly clear. Lows in the lower 70s. Light and variable winds, becoming north around 5 mph after midnight.
Wednesday
Sunny with highs in the mid 90s. Northeast winds around 5 mph. Heat index values up to 101 in the afternoon.
Wednesday Night
Mostly clear. Lows in the lower 70s. Light and variable winds.
Thursday
Sunny, hot with highs in the mid 90s. Light and variable winds. Heat index values up to 102.
Thursday Night
Partly cloudy with a chance of showers. Lows in the lower 70s. Chance of rain 30 percent.
Friday
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 40 percent. Heat index values up to 105.
Friday Night
Showers likely with a chance of thunderstorms. Lows in the upper 60s. Chance of rain 60 percent.
Saturday
Mostly sunny in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 40 percent.
Saturday Night
Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the upper 60s. Chance of rain 40 percent.
Sunday
Mostly sunny. Highs in the lower 90s.
Sunday Night
Mostly clear. Lows in the upper 60s.
Monday
Sunny. Highs around 90.



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333 AM EDT Tue Aug 18 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database