Jefferson County, CO: Current UV Index and Hourly Forecast

As of 1:37 PM MDT on April 1, 2025, all 23 cities in Jefferson County, CO in our database have a UV Index reading of High. The city with the highest UV Index reading right now is Coal Creek, CO with a reading of 6.4.

Over the next 24 hours, the highest UV Index reading in Jefferson County, CO is expected to be 6.4 in Coal Creek between 1:00 PM - 2:00 PM MDT today.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Jefferson County, CO as of 1:37 PM MDT, April 1, 2025

Current UV Index in Cities in Jefferson County, CO

1:37 PM MDT, April 1, 2025