Canyon County, ID: Current UV Index and Hourly Forecast

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As of 12:18 PM MDT on March 19, 2026, all 8 cities in Canyon County, ID in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Nampa, ID with a reading of 4.3.

Over the next 24 hours, the highest UV Index reading in Canyon County, ID is expected to be 5.7 in Nampa between 2:00 PM - 3:00 PM MDT today.

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Current UV Index in Cities in Canyon County, ID

• Caldwell - 4.3
• Greenleaf - 4.3
• Melba - 4.3
• Middleton - 4.3
• Nampa - 4.3
• Notus - 4.3
• Parma - 4.2
• Wilder - 4.2