Weld County, CO: Current UV Index and Hourly Forecast

As of 11:40 AM MDT on September 17, 2025, all 28 cities in Weld County, CO in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Erie, CO with a reading of 4.9.

Over the next 24 hours, the highest UV Index reading in Weld County, CO is expected to be 6.9 in Greeley 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 Weld County, CO as of 11:40 AM MDT, September 17, 2025

Current UV Index in Cities in Weld County, CO

11:40 AM MDT, September 17, 2025