Jefferson County, MT: Current UV Index and Hourly Forecast

As of 2:59 PM MDT on June 6, 2025, all 10 cities in Jefferson County, MT in our database have a UV Index reading of Very High. The city with the highest UV Index reading right now is Whitehall, MT with a reading of 8.7.

Over the next 24 hours, the highest UV Index reading in Jefferson County, MT is expected to be 9.1 in Whitehall between 1:00 PM - 2:00 PM MDT tomorrow.

Search Cities in Jefferson County, MT

UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Jefferson County, MT as of 2:59 PM MDT, June 6, 2025

Current UV Index in Cities in Jefferson County, MT

2:59 PM MDT, June 6, 2025