Weather in Union Center, SD
Updated 2026-08-11 11:30 local time · ZIP codes 57787
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
70°16% rain
76°17% rain
80°8% rain84°5% rain86°3% rain88°2% rain89°1% rain88°1% rain87°2% rain84°2% rain
80°3% rain78°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 17%).
It feels like 70°F with winds near 14 mph.
80°F, 8% rain chance and 15 mph wind.
Visibility is around 6 mi; gusts may reach 33 mph.
Current temperature is 70°F, wind 14 mph, rain chance up to 17%.
UV index is 5. Sunscreen and sunglasses are sensible for longer outdoor time.
Union Center weather today
Sunny and 70°F in Union Center, SD. Today's high is 89°F with a 6% rain chance. Winds are around 14 mph with gusts near 16 mph. Relative humidity is 94%, pressure is 29.97 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Union Center
Sunrise is at 05:48 AM and sunset is at 08:03 PM. Tomorrow's forecast calls for Sunny with a high near 87°F and a low near 67°F. The maximum rain chance is 57%.