Columbia County, WI: Current UV Index and Hourly Forecast

As of 9:22 AM CDT on August 28, 2025, all 15 cities in Columbia County, WI in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Portage, WI with a reading of 1.7.

Over the next 24 hours, the highest UV Index reading in Columbia County, WI is expected to be 6.7 in Wisconsin Dells between 1:00 PM - 2:00 PM CDT today.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Columbia County, WI as of 9:22 AM CDT, August 28, 2025

Current UV Index in Cities in Columbia County, WI

9:22 AM CDT, August 28, 2025