Weld County, CO: Current UV Index and Hourly Forecast

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As of 12:30 PM MST on February 6, 2026, all 28 cities in Weld County, CO in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Erie, CO with a reading of 3.1.

Over the next 24 hours, the highest UV Index reading in Weld County, CO is expected to be 3.1 in Erie between 12:00 PM - 1:00 PM MST today.

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Current UV Index in Cities in Weld County, CO

• Aristocrat Ranchettes - 3.1
• Ault - 3
• Briggsdale - 3
• Dacono - 3.1
• Eaton - 3
• Erie - 3.1
• Evans - 3
• Firestone - 3.1
• Fort Lupton - 3.1
• Frederick - 3.1
• Garden City - 3
• Gilcrest - 3
• Greeley - 3
• Grover - 3
• Hudson - 3.1
• Johnstown - 3.1
• Keenesburg - 3
• Kersey - 3
• La Salle - 3
• Lochbuie - 3.1
• Mead - 3.1
• Milliken - 3
• Nunn - 3
• Pierce - 3
• Platteville - 3
• Raymer - 3
• Severance - 3
• Windsor - 3