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

As of 12:37 AM MDT on June 28, 2025, all 10 cities in Big Horn County, MT in our database have a UV Index reading of 0, indicating no radiation from the sun.

Over the next 24 hours, the highest UV Index reading in Big Horn County, MT is expected to be 9.3 in Fort Smith 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 Big Horn County, MT as of 12:37 AM MDT, June 28, 2025

Current UV Index in Cities in Big Horn County, MT

12:37 AM MDT, June 28, 2025