Grand County, UT: Current UV Index and Hourly Forecast

As of 12:58 PM MDT on April 1, 2025, all 3 cities in Grand County, UT in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Thompson Springs, UT with a reading of 4.1.

Over the next 24 hours, the highest UV Index reading in Grand County, UT is expected to be 5.1 in Castle Valley between 2:00 PM - 3:00 PM MDT today.

Search Cities in Grand County, UT

UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Grand County, UT as of 12:58 PM MDT, April 1, 2025

Current UV Index in Cities in Grand County, UT

12:58 PM MDT, April 1, 2025