Colorado (CO): Current UV Index and Hourly Forecast

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As of 4:25 AM MDT on April 21, 2026, all 478 cities in Colorado in our database have a UV Index reading of 0, indicating no radiation from the sun.

Over the next 24 hours, the highest UV Index reading in Colorado is expected to be 10.2 in Silver Cliff 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 Colorado as of 4:25 AM MDT, April 21, 2026

Counties in Colorado (CO)

Current UV Index in Major Cities in Colorado (CO)

4:25 AM MDT, April 21, 2026