Calaveras County, CA: Current UV Index and Hourly Forecast

As of 5:52 PM PDT on October 18, 2025, all 16 cities in Calaveras County, CA in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Rancho Calaveras, CA with a reading of 0.7.

Over the next 24 hours, the highest UV Index reading in Calaveras County, CA is expected to be 4.8 in Arnold between 1:00 PM - 2:00 PM PDT tomorrow.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Calaveras County, CA as of 5:52 PM PDT, October 18, 2025

Current UV Index in Cities in Calaveras County, CA

5:52 PM PDT, October 18, 2025