Weld County, CO: Current UV Index and Hourly Forecast

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As of 1:33 PM MDT on April 10, 2026, all 28 cities in Weld County, CO in our database have a UV Index reading of High. The city with the highest UV Index reading right now is Pierce, CO with a reading of 6.2.

Over the next 24 hours, the highest UV Index reading in Weld County, CO is expected to be 6.5 in Erie between 12:00 PM - 1:00 PM MDT tomorrow.

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Current UV Index in Cities in Weld County, CO

• Aristocrat Ranchettes - 5.9
• Ault - 5.8
• Briggsdale - 6.1
• Dacono - 5.7
• Eaton - 5.8
• Erie - 5.7
• Evans - 5.6
• Firestone - 5.9
• Fort Lupton - 5.9
• Frederick - 5.7
• Garden City - 5.8
• Gilcrest - 5.6
• Greeley - 5.8
• Grover - 6.1
• Hudson - 6
• Johnstown - 5.9
• Keenesburg - 5.8
• Kersey - 5.6
• La Salle - 5.6
• Lochbuie - 5.9
• Mead - 5.9
• Milliken - 5.6
• Nunn - 6.2
• Pierce - 6.2
• Platteville - 5.6
• Raymer - 5.9
• Severance - 5.8
• Windsor - 6.1