As of 3:06 PM MDT on May 17, 2026, out of 18 cities in Glacier County, MT in our database, 14 cities (78%) have a UV Index reading of Moderate, while 4 cities (22%) have a UV Index reading of High. The city with the highest UV Index reading right now is Babb, MT with a reading of 6.1.
Over the next 24 hours, the highest UV Index reading in Glacier County, MT is expected to be 7.6 in Saint Mary 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 |