Lake County, MT: Current UV Index and Hourly Forecast

As of 7:09 AM MDT on September 18, 2025, all 23 cities in Lake 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 Lake County, MT is expected to be 5.8 in St. Ignatius between 2:00 PM - 3:00 PM MDT today.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Lake County, MT as of 7:09 AM MDT, September 18, 2025

Current UV Index in Cities in Lake County, MT

7:09 AM MDT, September 18, 2025