UV Index Today in Jefferson County, Colorado (CO)
Wednesday, November 4, 2026 -10:17 AM MST (GMT-7)
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The average maximum UV Index today across 29 locations in Jefferson County, Colorado (CO), is 3.4. The highest projected maximum is 3.5 in Dakota Ridge at 12:00 PM MST, while the lowest projected maximum is 3.2 in Westminster at 12:00 PM MST.
Tomorrow, the average maximum UV Index across those same locations is expected to be 3.4. The highest projected maximum is 3.6 in Dakota Ridge at 12:00 PM MST, and the lowest projected maximum is 3.2 in Westminster at 12:00 PM MST.
29 Places in Jefferson County, Colorado (CO)
Maximum UV Index Today