As of 11:17 AM MDT on April 15, 2026, out of 8 cities in Powell County, MT in our database, 6 cities (75%) have a UV Index reading of Low, while 2 cities (25%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Avon, MT with a reading of 2.7.
Over the next 24 hours, the highest UV Index reading in Powell County, MT is expected to be 4.9 in Elliston 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 |