As of 2:14 PM MDT on July 1, 2026, out of 10 cities in Mesa County, CO in our database, 5 cities (50%) have a UV Index reading of Very High, while 5 cities (50%) have a UV Index reading of High. The city with the highest UV Index reading right now is Grand Junction, CO with a reading of 8.1.
Over the next 24 hours, the highest UV Index reading in Mesa County, CO is expected to be 8.1 in Grand Junction between 2:00 PM - 3:00 PM MDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |