As of 12:37 PM MDT on April 1, 2026, out of 495 cities in Montana in our database, 437 cities (88%) have a UV Index reading of Moderate, while 58 cities (12%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Judith Gap, MT with a reading of 4.6.
Over the next 24 hours, the highest UV Index reading in Montana is expected to be 5.3 in Maverick Mountain 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 |