Portage County, WI: Current UV Index and Hourly Forecast

As of 5:22 PM CST on February 21, 2026, all 12 cities in Portage County, WI 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 Portage County, WI is expected to be 2 in Junction City between 12:00 PM - 1:00 PM CST tomorrow.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Portage County, WI as of 5:22 PM CST, February 21, 2026

Current UV Index in Cities in Portage County, WI

5:22 PM CST, February 21, 2026