Lake County, MT: Current UV Index and Hourly Forecast

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As of 11:30 AM MST on December 15, 2025, all 23 cities in Lake County, MT in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Ravalli, MT with a reading of 0.3.

Over the next 24 hours, the highest UV Index reading in Lake County, MT is expected to be 0.5 in Ravalli between 12:00 PM - 1:00 PM MST today.

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Current UV Index in Cities in Lake County, MT

• Arlee - 0.2
• Bear Dance - 0.1
• Big Arm - 0.1
• Charlo - 0.1
• Dayton - 0.1
• Elmo - 0.1
• Finley Point - 0.1
• Jette - 0.1
• Kerr - 0.1
• Kicking Horse - 0.2
• Kings Point - 0.1
• Lake Mary Ronan - 0.1
• Lindisfarne - 0.1
• Pablo - 0.2
• Polson - 0.1
• Ravalli - 0.3
• Rocky Point - 0.1
• Rollins - 0.1
• Ronan - 0.2
• St. Ignatius - 0.2
• Swan Lake - 0.2
• Turtle Lake - 0.1
• Woods Bay - 0.1