Boulder County, CO: Current UV Index and Hourly Forecast

As of 5:18 PM MST on January 18, 2025, all 31 cities in Boulder County, CO 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 Boulder County, CO is expected to be 2.4 in Nederland between 12:00 PM - 1:00 PM MST tomorrow.

Search Cities in Boulder County, CO

UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Boulder County, CO as of 5:18 PM MST, January 18, 2025

Current UV Index in Cities in Boulder County, CO

5:18 PM MST, January 18, 2025