King County, WA: Current UV Index and Hourly Forecast

As of 8:31 PM PDT on October 30, 2025, all 62 cities in King County, WA in our database have a UV Index reading of 0, indicating no radiation from the sun.

Over the next 24 hours, the highest UV Index reading in King County, WA is expected to be 1.2 in Maple Valley between 2:00 PM - 3:00 PM PDT tomorrow.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in King County, WA as of 8:31 PM PDT, October 30, 2025

Current UV Index in Cities in King County, WA

8:31 PM PDT, October 30, 2025