As of 1:39 PM MST on January 20, 2026, out of 2 cities in Custer County, CO in our database, 1 city (50%) have a UV Index reading of Moderate, while 1 city (50%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Silver Cliff, CO with a reading of 2.6.
Over the next 24 hours, the highest UV Index reading in Custer County, CO is expected to be 2.8 in Silver Cliff between 12:00 PM - 1:00 PM MST tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |