Snohomish County, WA: Current UV Index and Hourly Forecast

As of 8:17 AM PDT on July 20, 2025, 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 Sultan, WA with a reading of 1.2.

Over the next 24 hours, the highest UV Index reading in Snohomish County, WA is expected to be 7.3 in Darrington between 1:00 PM - 2:00 PM PDT today.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Snohomish County, WA as of 8:17 AM PDT, July 20, 2025

Current UV Index in Cities in Snohomish County, WA

8:17 AM PDT, July 20, 2025