Boone County, IA: Current UV Index and Hourly Forecast

As of 5:55 PM CDT on July 18, 2025, all 9 cities in Boone County, IA in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Madrid, IA with a reading of 1.7.

Over the next 24 hours, the highest UV Index reading in Boone County, IA is expected to be 9.2 in Beaver between 1:00 PM - 2:00 PM CDT tomorrow.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Boone County, IA as of 5:55 PM CDT, July 18, 2025

Current UV Index in Cities in Boone County, IA

5:55 PM CDT, July 18, 2025