As of 2:38 PM MDT on July 14, 2025, out of 22 cities in Douglas County, CO in our database, 12 cities (55%) have a UV Index reading of Very High, while 10 cities (45%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Castle Rock, CO with a reading of 9.4.
Over the next 24 hours, the highest UV Index reading in Douglas County, CO is expected to be 11.3 in Castle Rock 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 |