As of 11:34 AM CDT on August 29, 2026, out of 7 cities in Lewis County, MO in our database, 6 cities (86%) have a UV Index reading of Moderate, while 1 city (14%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Lewistown, MO with a reading of 3.7.
Over the next 24 hours, the highest UV Index reading in Lewis County, MO is expected to be 7.8 in La Belle between 1:00 PM - 2:00 PM CDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |