As of 10:36 AM PDT on October 15, 2026, all 66 cities in Snohomish County, WA in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Monroe, WA with a reading of 1.
Over the next 24 hours, the highest UV Index reading in Snohomish County, WA is expected to be 3.2 in Index between 1:00 PM - 2:00 PM PDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |