Washington County, MN: Current UV Index and Hourly Forecast

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As of 4:07 PM CDT on May 20, 2026, all 24 cities in Washington County, MN in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Woodbury, MN with a reading of 4.5.

Over the next 24 hours, the highest UV Index reading in Washington County, MN is expected to be 6.8 in Cottage Grove between 1:00 PM - 2:00 PM CDT tomorrow.

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Current UV Index in Cities in Washington County, MN

• Afton - 4.4
• Bayport - 4.4
• Cottage Grove - 4.5
• Dellwood - 4.5
• Forest Lake - 4.4
• Grant - 4.5
• Hugo - 4.4
• Lake Elmo - 4.5
• Lake St. Croix Beach - 4.4
• Lakeland - 4.4
• Lakeland Shores - 4.4
• Landfall - 4.5
• Mahtomedi - 4.5
• Marine on St. Croix - 4.4
• Newport - 4.5
• Oak Park Heights - 4.4
• Oakdale - 4.5
• Pine Springs - 4.5
• Scandia - 4.4
• St. Marys Point - 4.4
• St. Paul Park - 4.5
• Stillwater - 4.4
• Willernie - 4.5
• Woodbury - 4.5