As of 7:11 PM MDT on August 2, 2026, all 12 cities in Chouteau County, MT in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Fort Benton, MT with a reading of 0.5.
Over the next 24 hours, the highest UV Index reading in Chouteau County, MT is expected to be 5.7 in Rocky Boy West 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 |