As of 3:15 PM MDT on June 6, 2025, out of 495 cities in Montana in our database, 367 cities (74%) have a UV Index reading of High, 94 cities (19%) have a UV Index reading of Moderate, while 34 cities (7%) have a UV Index reading of Very High. The city with the highest UV Index reading right now is Maverick Mountain, MT with a reading of 8.1.
Over the next 24 hours, the highest UV Index reading in Montana is expected to be 9.8 in Hebgen Lake Estates 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 |