As of 3:13 PM MDT on September 13, 2026, out of 478 cities in Colorado in our database, 276 cities (58%) have a UV Index reading of High, 173 cities (36%) have a UV Index reading of Moderate, while 29 cities (6%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Towaoc, CO with a reading of 7.
Over the next 24 hours, the highest UV Index reading in Colorado is expected to be 9.4 in Telluride between 1:00 PM - 2:00 PM MDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |