As of 2:04 PM MDT on April 11, 2026, out of 237 cities in Idaho in our database, 158 cities (67%) have a UV Index reading of Moderate, 52 cities (22%) have a UV Index reading of High, while 27 cities (11%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Franklin, ID with a reading of 6.9.
Over the next 24 hours, the highest UV Index reading in Idaho is expected to be 6.9 in Franklin between 2:00 PM - 3:00 PM MDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |