Jefferson County, CO: Current UV Index and Hourly Forecast

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As of 8:41 AM MST on November 1, 2026, all 23 cities in Jefferson County, CO in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Ken Caryl, CO with a reading of 0.4.

Over the next 24 hours, the highest UV Index reading in Jefferson County, CO is expected to be 3 in Arvada between 12:00 PM - 1:00 PM MST today.

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Current UV Index in Cities in Jefferson County, CO

• Applewood - 0.3
• Arvada - 0.3
• Aspen Park - 0.3
• Brook Forest - 0.3
• Coal Creek - 0.3
• Columbine - 0.4
• Dakota Ridge - 0.3
• East Pleasant View - 0.3
• Edgewater - 0.3
• Evergreen - 0.3
• Fairmount - 0.3
• Genesee - 0.3
• Golden - 0.3
• Idledale - 0.3
• Indian Hills - 0.3
• Ken Caryl - 0.4
• Kittredge - 0.3
• Lakeside - 0.3
• Lakewood - 0.3
• Morrison - 0.3
• Mountain View - 0.3
• West Pleasant View - 0.3
• Wheat Ridge - 0.3