Costilla County, CO: Current UV Index and Hourly Forecast

As of 1:58 PM MDT on August 29, 2025, all 4 cities in Costilla County, CO in our database have a UV Index reading of Very High. The city with the highest UV Index reading right now is San Luis, CO with a reading of 9.5.

Over the next 24 hours, the highest UV Index reading in Costilla County, CO is expected to be 9.7 in Fort Garland between 12:00 PM - 1:00 PM MDT tomorrow.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Costilla County, CO as of 1:58 PM MDT, August 29, 2025

Current UV Index in Cities in Costilla County, CO

1:58 PM MDT, August 29, 2025