Weather in Union, SC
Updated 2026-08-11 13:30 local time · ZIP codes 29379
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
90°1% rain98°1% rain99°1% rain99°1% rain98°1% rain97°1% rain95°1% rain90°1% rain
87°1% rain85°2% rain84°3% rain82°4% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 6%).
It feels like 94°F with winds near 4 mph.
90°F, 1% rain chance and 6 mph wind.
Visibility is around 10 mi; gusts may reach 12 mph.
Current temperature is 90°F, wind 4 mph, rain chance up to 6%.
UV index is 9. Use shade, sunscreen, a hat and sunglasses.
Union weather today
Sunny and 90°F in Union, SC. Today's high is 99°F with a 3% rain chance. Winds are around 4 mph with gusts near 4 mph. Relative humidity is 52%, pressure is 30.08 inHg, and visibility is about 10 miles.
Tonight and tomorrow in Union
Sunrise is at 06:44 AM and sunset is at 08:19 PM. Tomorrow's forecast calls for Sunny with a high near 101°F and a low near 72°F. The maximum rain chance is 17%.