Washington County, MN: Current UV Index and Hourly Forecast

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As of 3:40 PM CDT on September 12, 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 Cottage Grove, MN with a reading of 4.

Over the next 24 hours, the highest UV Index reading in Washington County, MN is expected to be 4 in Woodbury between 1:00 PM - 2:00 PM CDT tomorrow.

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Current UV Index in Cities in Washington County, MN

• Afton - 3.9
• Bayport - 3.9
• Cottage Grove - 4
• Dellwood - 3.8
• Forest Lake - 3.7
• Grant - 3.8
• Hugo - 3.7
• Lake Elmo - 3.8
• Lake St. Croix Beach - 3.9
• Lakeland - 3.9
• Lakeland Shores - 3.9
• Landfall - 3.8
• Mahtomedi - 3.8
• Marine on St. Croix - 3.4
• Newport - 4
• Oak Park Heights - 3.9
• Oakdale - 3.8
• Pine Springs - 3.8
• Scandia - 3.4
• St. Marys Point - 3.9
• St. Paul Park - 4
• Stillwater - 3.9
• Willernie - 3.8
• Woodbury - 3.8