Stanislaus County, CA: Current UV Index and Hourly Forecast

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As of 7:06 AM PDT on August 16, 2026, all 33 cities in Stanislaus County, CA in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Modesto, CA with a reading of 0.2.

Over the next 24 hours, the highest UV Index reading in Stanislaus County, CA is expected to be 9.1 in Patterson between 1:00 PM - 2:00 PM PDT today.

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Current UV Index in Cities in Stanislaus County, CA

• Airport - 0.2
• Bret Harte - 0.2
• Bystrom - 0.2
• Ceres - 0.2
• Cowan - 0.2
• Crows Landing - 0.2
• Del Rio - 0.2
• Denair - 0.2
• Diablo Grande - 0.2
• East Oakdale - 0.2
• Empire - 0.2
• Grayson - 0.2
• Hickman - 0.2
• Hughson - 0.2
• Keyes - 0.2
• Knights Ferry - 0.2
• La Grange - 0.2
• Modesto - 0.2
• Monterey Park Tract - 0.2
• Newman - 0.2
• Oakdale - 0.2
• Orange Blossom - 0.2
• Parklawn - 0.2
• Patterson - 0.2
• Riverbank - 0.2
• Riverdale Park - 0.2
• Rouse - 0.2
• Salida - 0.2
• Turlock - 0.2
• Valley Home - 0.2
• Waterford - 0.2
• West Modesto - 0.2
• Westley - 0.2