Mendocino County, CA: Current UV Index and Hourly Forecast

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As of 10:58 AM PDT on September 18, 2025, all 23 cities in Mendocino County, CA in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Leggett, CA with a reading of 2.2.

Over the next 24 hours, the highest UV Index reading in Mendocino County, CA is expected to be 5.6 in Boonville between 2:00 PM - 3:00 PM PDT today.

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Current UV Index in Cities in Mendocino County, CA

• Albion - 1.6
• Anchor Bay - 1.9
• Boonville - 1.1
• Brooktrails - 1.5
• Calpella - 0.9
• Caspar - 1.6
• Cleone - 1.6
• Comptche - 1.3
• Covelo - 1.8
• Fort Bragg - 1.6
• Hopland - 1.3
• Laytonville - 2.1
• Leggett - 2.2
• Little River - 1.6
• Manchester - 1.8
• Mendocino - 1.6
• Philo - 1.8
• Point Arena - 1.8
• Potter Valley - 1.1
• Redwood Valley - 0.9
• Talmage - 0.9
• Ukiah - 0.9
• Willits - 1.1