Placer County, CA: Current UV Index and Hourly Forecast

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As of 11:37 AM PST on January 18, 2026, all 22 cities in Placer County, CA in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Kings Beach, CA with a reading of 2.1.

Over the next 24 hours, the highest UV Index reading in Placer County, CA is expected to be 2.7 in Sunnyside-Tahoe City between 12:00 PM - 1:00 PM PST today.

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Current UV Index in Cities in Placer County, CA

• Alta - 2.1
• Auburn - 2
• Carnelian Bay - 2.1
• Cedar Flat - 2.1
• Colfax - 2
• Dollar Point - 2.1
• Dutch Flat - 2.1
• Foresthill - 2.1
• Granite Bay - 2
• Kings Beach - 2.1
• Lincoln - 2
• Loomis - 2
• Meadow Vista - 2
• Newcastle - 2
• North Auburn - 2
• Penryn - 2
• Rocklin - 2
• Roseville - 2
• Sheridan - 2
• Sunnyside-Tahoe City - 1.7
• Tahoe Vista - 2.1
• Tahoma - 2.1