Stanislaus County, CA: Current UV Index and Hourly Forecast

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As of 2:07 PM PDT on September 11, 2025, all 33 cities in Stanislaus County, CA in our database have a UV Index reading of High. The city with the highest UV Index reading right now is Modesto, CA with a reading of 6.4.

Over the next 24 hours, the highest UV Index reading in Stanislaus County, CA is expected to be 6.6 in Patterson between 1:00 PM - 2:00 PM PDT tomorrow.

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Current UV Index in Cities in Stanislaus County, CA

• Airport - 6.4
• Bret Harte - 6.3
• Bystrom - 6.3
• Ceres - 6.3
• Cowan - 6.3
• Crows Landing - 6.3
• Del Rio - 6.4
• Denair - 6.2
• Diablo Grande - 6.2
• East Oakdale - 6.3
• Empire - 6.4
• Grayson - 6.2
• Hickman - 6.2
• Hughson - 6.2
• Keyes - 6.3
• Knights Ferry - 6.3
• La Grange - 6.4
• Modesto - 6.4
• Monterey Park Tract - 6.3
• Newman - 6.2
• Oakdale - 6.3
• Orange Blossom - 6.3
• Parklawn - 6.3
• Patterson - 6.2
• Riverbank - 6.4
• Riverdale Park - 6.3
• Rouse - 6.3
• Salida - 6.4
• Turlock - 6.2
• Valley Home - 6.4
• Waterford - 6.3
• West Modesto - 6.3
• Westley - 6.2