As of 3:24 PM PDT on May 18, 2026, all 5 cities in Lewis County, ID in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Craigmont, ID with a reading of 5.4.
Over the next 24 hours, the highest UV Index reading in Lewis County, ID is expected to be 6.6 in Kamiah between 12:00 PM - 1:00 PM PDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |