Weld County, CO: Current UV Index and Hourly Forecast

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As of 3:51 PM MST on November 9, 2025, all 28 cities in Weld County, CO in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Windsor, CO with a reading of 0.9.

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 tomorrow.

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Current UV Index in Cities in Weld County, CO

• Aristocrat Ranchettes - 0.9
• Ault - 0.8
• Briggsdale - 0.8
• Dacono - 0.9
• Eaton - 0.8
• Erie - 0.9
• Evans - 0.9
• Firestone - 0.9
• Fort Lupton - 0.9
• Frederick - 0.9
• Garden City - 0.8
• Gilcrest - 0.9
• Greeley - 0.8
• Grover - 0.8
• Hudson - 0.9
• Johnstown - 0.9
• Keenesburg - 0.8
• Kersey - 0.8
• La Salle - 0.9
• Lochbuie - 0.9
• Mead - 0.9
• Milliken - 0.9
• Nunn - 0.8
• Pierce - 0.8
• Platteville - 0.9
• Raymer - 0.8
• Severance - 0.8
• Windsor - 0.9