Washington County, OR: Current UV Index and Hourly Forecast

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As of 7:10 PM PDT on July 11, 2026, all 27 cities in Washington County, OR in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Gaston, OR with a reading of 0.7.

Over the next 24 hours, the highest UV Index reading in Washington County, OR is expected to be 8.6 in Sherwood between 1:00 PM - 2:00 PM PDT tomorrow.

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Current UV Index in Cities in Washington County, OR

• Aloha - 0.6
• Banks - 0.6
• Beaverton - 0.6
• Bethany - 0.6
• Bull Mountain - 0.6
• Cedar Hills - 0.6
• Cedar Mill - 0.6
• Cherry Grove - 0.7
• Cornelius - 0.6
• Dilley - 0.6
• Durham - 0.6
• Forest Grove - 0.6
• Garden Home-Whitford - 0.6
• Gaston - 0.7
• Hillsboro - 0.6
• King City - 0.6
• Marlene Village - 0.6
• Metzger - 0.6
• North Plains - 0.6
• Oak Hills - 0.6
• Raleigh Hills - 0.6
• Rockcreek - 0.6
• Sherwood - 0.6
• Tigard - 0.6
• Tualatin - 0.6
• West Haven-Sylvan - 0.6
• West Slope - 0.6