Snohomish County, WA: Current UV Index and Hourly Forecast

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As of 5:37 PM PDT on June 12, 2026, all 66 cities in Snohomish County, WA in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Marysville, WA with a reading of 3.1.

Over the next 24 hours, the highest UV Index reading in Snohomish County, WA is expected to be 8.3 in Index between 1:00 PM - 2:00 PM PDT tomorrow.

Search Cities in Snohomish County, WA

Current UV Index in Cities in Snohomish County, WA

• Alderwood Manor - 3.1
• Arlington - 3
• Arlington Heights - 3
• Bothell East - 3.1
• Bothell West - 3.1
• Brier - 3.1
• Bryant - 3
• Bunk Foss - 3
• Canyon Creek - 3
• Cathcart - 3.1
• Cavalero - 3
• Chain Lake - 3
• Clearview - 3.1
• Darrington - 2.6
• Eastmont - 3.1
• Edmonds - 3.1
• Esperance - 3.1
• Everett - 3.1
• Fobes Hill - 3.1
• Gold Bar - 3.1
• Granite Falls - 3
• Hat Island - 3.1
• High Bridge - 3.1
• Index - 3.1
• Kayak Point - 3
• Lake Bosworth - 3
• Lake Cassidy - 3
• Lake Goodwin - 3
• Lake Ketchum - 3
• Lake Roesiger - 3
• Lake Stevens - 3
• Lake Stickney - 3.1
• Larch Way - 3.1
• Lochsloy - 3
• Lynnwood - 3.1
• Machias - 3
• Maltby - 3.1
• Martha Lake - 3.1
• Marysville - 3.1
• May Creek - 3.1
• Meadowdale - 3.1
• Mill Creek - 3.1
• Mill Creek East - 3.1
• Monroe - 3.1
• Monroe North - 3
• Mountlake Terrace - 3.1
• Mukilteo - 3.1
• North Lynnwood - 3.1
• North Sultan - 3.1
• Northwest Stanwood - 3
• Oso - 3
• Picnic Point - 3.1
• Silvana - 3
• Silver Firs - 3.1
• Sisco Heights - 3
• Snohomish - 3
• Stanwood - 3
• Startup - 3.1
• Sultan - 3.1
• Sunday Lake - 3
• Swede Heaven - 3
• Three Lakes - 3
• Verlot - 3.1
• Warm Beach - 3
• Woods Creek - 3
• Woodway - 3.1