Larimer County, CO: Current UV Index and Hourly Forecast

As of 3:20 PM MDT on September 18, 2025, out of 8 cities in Larimer County, CO in our database, 6 cities (75%) have a UV Index reading of Moderate, while 2 cities (25%) have a UV Index reading of High. The city with the highest UV Index reading right now is Estes Park, CO with a reading of 5.7.

Over the next 24 hours, the highest UV Index reading in Larimer County, CO is expected to be 7.5 in Estes Park between 1:00 PM - 2:00 PM MDT tomorrow.

Search Cities in Larimer County, CO

UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Larimer County, CO as of 3:20 PM MDT, September 18, 2025

Current UV Index in Cities in Larimer County, CO

3:20 PM MDT, September 18, 2025