As of 1:18 PM MDT on April 1, 2025, out of 9 cities in Summit County, CO in our database, 8 cities (89%) have a UV Index reading of High, while 1 city (11%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Silverthorne, CO with a reading of 6.8.
Over the next 24 hours, the highest UV Index reading in Summit County, CO is expected to be 6.8 in Silverthorne between 1:00 PM - 2:00 PM MDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |