UV Index Today in Arapahoe County, Colorado (CO)

Thursday, November 5, 2026 -1:32 PM MST (GMT-7)

The average maximum UV Index today across 27 locations in Arapahoe County, Colorado (CO), is 3.3. The highest projected maximum is 3.3 in Centennial at 12:00 PM MST, while the lowest projected maximum is 3.2 in Denver at 12:00 PM MST.

Tomorrow, the average maximum UV Index across those same locations is expected to be 2.8. The highest projected maximum is 3 in Denver at 12:00 PM MST, and the lowest projected maximum is 2.6 in Aurora at 12:00 PM MST.

27 Places in Arapahoe County, Colorado (CO)

Maximum UV Index Today
  • Aurora - 3.2
  • Denver - 3.2