Pima County, AZ: Current UV Index and Hourly Forecast

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As of 8:52 AM MST on April 28, 2026, all 54 cities in Pima County, AZ in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Green Valley, AZ with a reading of 1.8.

Over the next 24 hours, the highest UV Index reading in Pima County, AZ is expected to be 11.2 in Arivaca between 12:00 PM - 1:00 PM MST today.

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Current UV Index in Cities in Pima County, AZ

• Ajo - 1.5
• Ak Chin - 1.5
• Ali Chuk - 1.5
• Ali Chukson - 1.6
• Ali Molina - 1.6
• Anegam - 1.5
• Arivaca - 1.7
• Arivaca Junction - 1.8
• Avra Valley - 1.7
• Casas Adobes - 1.7
• Catalina - 1.7
• Catalina Foothills - 1.7
• Charco - 1.5
• Chiawuli Tak - 1.6
• Comobabi - 1.6
• Corona de Tucson - 1.7
• Cowlic - 1.6
• Drexel Heights - 1.7
• Elephant Head - 1.8
• Flowing Wells - 1.7
• Green Valley - 1.8
• Gu Oidak - 1.5
• Haivana Nakya - 1.6
• Kleindale - 1.7
• Ko Vaya - 1.5
• Maish Vaya - 1.5
• Marana - 1.7
• Nelson - 1.7
• Nolic - 1.5
• Oro Valley - 1.7
• Picture Rocks - 1.6
• Pisinemo - 1.5
• Rillito - 1.7
• Rincon Valley - 1.7
• Sahuarita - 1.6
• San Miguel - 1.7
• Santa Rosa - 1.5
• Sells - 1.5
• South Komelik - 1.7
• South Tucson - 1.7
• Summerhaven - 1.8
• Summit - 1.6
• Tanque Verde - 1.7
• Three Points - 1.6
• Topawa - 1.7
• Tucson - 1.7
• Tucson Estates - 1.6
• Tucson Mountains - 1.7
• Vail - 1.7
• Valencia West - 1.7
• Ventana - 1.6
• Wahak Hotrontk - 1.5
• Why - 1.5
• Willow Canyon - 1.8