Union County, IA: Current UV Index and Hourly Forecast

As of 3:19 AM CDT on August 20, 2025, all 8 cities in Union County, IA in our database have a UV Index reading of 0, indicating no radiation from the sun.

Over the next 24 hours, the highest UV Index reading in Union County, IA is expected to be 8.7 in Creston between 1:00 PM - 2:00 PM CDT today.

Search Cities in Union County, IA

UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Union County, IA as of 3:19 AM CDT, August 20, 2025

Current UV Index in Cities in Union County, IA

3:19 AM CDT, August 20, 2025