Colusa County, CA: Current UV Index and Hourly Forecast

As of 10:52 AM PDT on September 11, 2025, all 9 cities in Colusa County, CA in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Colusa, CA with a reading of 2.6.

Over the next 24 hours, the highest UV Index reading in Colusa County, CA is expected to be 6.5 in Colusa between 1:00 PM - 2:00 PM PDT today.

Search Cities in Colusa County, CA

UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Colusa County, CA as of 10:52 AM PDT, September 11, 2025

Current UV Index in Cities in Colusa County, CA

10:52 AM PDT, September 11, 2025