As of 1:59 PM MDT on August 31, 2026, out of 24 cities in Arapahoe County, CO in our database, 14 cities (58%) have a UV Index reading of High, 8 cities (33%) have a UV Index reading of Moderate, while 2 cities (8%) have a UV Index reading of Very High. The city with the highest UV Index reading right now is Deer Trail, CO with a reading of 8.3.
Over the next 24 hours, the highest UV Index reading in Arapahoe County, CO is expected to be 8.4 in Centennial between 12:00 PM - 1:00 PM MDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |