Big Horn County, WY: Current UV Index and Hourly Forecast

As of 4:21 PM MDT on August 30, 2025, all 11 cities in Big Horn County, WY in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Cowley, WY with a reading of 3.9.

Over the next 24 hours, the highest UV Index reading in Big Horn County, WY is expected to be 7.6 in Hyattville between 1:00 PM - 2:00 PM MDT tomorrow.

Search Cities in Big Horn County, WY

UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Big Horn County, WY as of 4:21 PM MDT, August 30, 2025

Current UV Index in Cities in Big Horn County, WY

4:21 PM MDT, August 30, 2025