UV Index Today in Snohomish County, Washington (WA)
Sunday, September 20, 2026 -9:23 AM PDT (GMT-7)
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The average maximum UV Index today across 66 locations in Snohomish County, Washington (WA), is 4.7. The highest projected maximum is 4.9 in Sultan at 1:00 PM PDT, while the lowest projected maximum is 4.5 in Camano at 1:00 PM PDT.
Tomorrow, the average maximum UV Index across those same locations is expected to be 4.5. The highest projected maximum is 4.6 in Arlington Heights at 1:00 PM PDT, and the lowest projected maximum is 4.4 in Arlington at 1:00 PM PDT.
66 Places in Snohomish County, Washington (WA)
Maximum UV Index Today