Placer County, CA: Current UV Index and Hourly Forecast

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As of 12:19 PM PDT on July 22, 2026, out of 22 cities in Placer County, CA in our database, 13 cities (59%) have a UV Index reading of Very High, while 9 cities (41%) have a UV Index reading of Extreme. The city with the highest UV Index reading right now is Tahoma, CA with a reading of 11.2.

Over the next 24 hours, the highest UV Index reading in Placer County, CA is expected to be 12 in Tahoma between 1:00 PM - 2:00 PM PDT today.

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Current UV Index in Cities in Placer County, CA

• Alta - 10.6
• Auburn - 10.1
• Carnelian Bay - 11.1
• Cedar Flat - 11.1
• Colfax - 10.1
• Dollar Point - 11.1
• Dutch Flat - 10.6
• Foresthill - 10.4
• Granite Bay - 9.7
• Kings Beach - 11.1
• Lincoln - 9.8
• Loomis - 9.7
• Meadow Vista - 10.1
• Newcastle - 9.7
• North Auburn - 10.1
• Penryn - 9.7
• Rocklin - 9.7
• Roseville - 9.7
• Sheridan - 9.8
• Sunnyside-Tahoe City - 11.1
• Tahoe Vista - 11.1
• Tahoma - 11.2