Weld County, CO: Current UV Index and Hourly Forecast

• USA →
• Colorado →
• Weld County

As of 12:35 PM MDT on March 14, 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 Fort Lupton, CO with a reading of 4.6.

Over the next 24 hours, the highest UV Index reading in Weld County, CO is expected to be 4.6 in Fort Lupton between 12:00 PM - 1:00 PM MDT today.

Search Cities in Weld County, CO

Current UV Index in Cities in Weld County, CO

• Aristocrat Ranchettes - 4.6
• Ault - 3.5
• Briggsdale - 4
• Dacono - 3.6
• Eaton - 3.5
• Erie - 3.6
• Evans - 3.3
• Firestone - 2.8
• Fort Lupton - 4.6
• Frederick - 3.6
• Garden City - 3.5
• Gilcrest - 3.3
• Greeley - 3.5
• Grover - 4
• Hudson - 4.1
• Johnstown - 2.8
• Keenesburg - 4
• Kersey - 3.8
• La Salle - 3.3
• Lochbuie - 4.6
• Mead - 2.8
• Milliken - 3.3
• Nunn - 3.9
• Pierce - 3.9
• Platteville - 3.3
• Raymer - 3.8
• Severance - 3.5
• Windsor - 3.3