Weather in Union, IA
Updated 2026-08-11 12:30 local time · ZIP codes 50258

Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
82°8% rain
89°6% rain
91°4% rain
91°3% rain
90°3% rain
89°3% rain
86°5% rain
82°8% rain
79°10% rain
78°11% rain
77°11% rain
75°15% 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 15%).
It feels like 89°F with winds near 8 mph.
82°F, 8% rain chance and 7 mph wind.
Visibility is around 10 mi; gusts may reach 22 mph.
Current temperature is 82°F, wind 8 mph, rain chance up to 15%.
UV index is 6. Sunscreen, shade and protective clothing are recommended.
Union weather today
Sunny and 82°F in Union, IA. Today's high is 91°F with a 72% rain chance. Winds are around 8 mph with gusts near 9 mph. Relative humidity is 79%, pressure is 29.88 inHg, and visibility is about 10 miles.
Tonight and tomorrow in Union
Sunrise is at 06:15 AM and sunset is at 08:19 PM. Tomorrow's forecast calls for Sunny with a high near 82°F and a low near 67°F. The maximum rain chance is 79%.