As of 2:05 PM PDT on September 11, 2025, out of 23 cities in Mendocino County, CA in our database, 20 cities (87%) have a UV Index reading of Moderate, while 3 cities (13%) have a UV Index reading of High. The city with the highest UV Index reading right now is Covelo, CA with a reading of 5.7.
Over the next 24 hours, the highest UV Index reading in Mendocino County, CA is expected to be 6.3 in Willits between 1:00 PM - 2:00 PM PDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |