UV index today in Thornton, CO | Fit Check

UV Index

High

Today's UV index is high. If working or spending time outdoors, wear UV protective clothing, use sunscreen, and try to avoid direct sun exposure between 11 AM and 4 PM.

TodayTomorrow

ExtremeVery highHighModerateLow

9PM

10PM

11PM

12AM

1AM

2AM

3AM

4AM

5AM

LowModerateHigh

Hourly UV and cloud cover

UV index is unitless. Cloud cover is shown as a percentage.

Peak UV 6

HourUV indexCloud cover

10PM6High63%

11PM4Moderate64%

12AM2Low61%

1AM2Low64%

2AM1Low68%

3AM0Low64%

4AM0Low65%

5AM0Low66%