As of 5:57 PM MDT on August 10, 2026, out of 237 cities in Idaho in our database, 198 cities (84%) have a UV Index reading of Moderate, while 39 cities (16%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Stanley, ID with a reading of 3.9.
Over the next 24 hours, the highest UV Index reading in Idaho is expected to be 8.9 in Ketchum between 2:00 PM - 3:00 PM MDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |