Gallatin County, MT: Current UV Index and Hourly Forecast

• USA →
• Montana →
• Gallatin County

As of 10:42 PM MDT on July 28, 2026, all 18 cities in Gallatin 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 Gallatin County, MT is expected to be 8.6 in Hebgen Lake Estates between 1:00 PM - 2:00 PM MDT tomorrow.

Search Cities in Gallatin County, MT

Current UV Index in Cities in Gallatin County, MT

• Amsterdam - 0
• Belgrade - 0
• Big Sky - 0
• Bozeman - 0
• Churchill - 0
• Four Corners - 0
• Gallatin Gateway - 0
• Gallatin River Ranch - 0
• Hebgen Lake Estates - 0
• King Arthur Park - 0
• Logan - 0
• Manhattan - 0
• Ponderosa Pines - 0
• Sedan - 0
• Springhill - 0
• Three Forks - 0
• West Yellowstone - 0
• Willow Creek - 0