As of 3:27 PM PST on February 21, 2026, all 2 cities in Boundary County, ID in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Bonners Ferry, ID with a reading of 0.5.
Over the next 24 hours, the highest UV Index reading in Boundary County, ID is expected to be 2 in Bonners Ferry between 12:00 PM - 1:00 PM PST tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |