As of 12:45 PM MDT on May 10, 2026, out of 24 cities in Flathead County, MT in our database, 22 cities (92%) have a UV Index reading of High, while 2 cities (8%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Pinnacle, MT with a reading of 6.4.
Over the next 24 hours, the highest UV Index reading in Flathead County, MT is expected to be 7.1 in Essex 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 |