As of 5:03 PM MDT on August 30, 2025, out of 18 cities in Lewis and Clark County, MT in our database, 10 cities (56%) have a UV Index reading of Moderate, while 8 cities (44%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Lincoln, MT with a reading of 2.6.
Over the next 24 hours, the highest UV Index reading in Lewis and Clark County, MT is expected to be 6.2 in Rimini 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 |