Do I need sunscreen today in Greeley, CO
UV Index
Very high
Today's UV index is very 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
9AM
2PM
6PM
10PM
2AM
5AM
LowModerateHighVery high
Hourly UV and cloud cover
UV index is unitless. Cloud cover is shown as a percentage.
HourUV indexCloud cover
11AM0Low6%
12PM0Low6%
1PM1Low5%
2PM1Low5%
3PM2Low4%
4PM4Moderate4%
5PM6High4%
6PM8Very high4%
7PM8Very high4%
8PM9Very high7%
9PM10Very high11%
10PM7High24%
11PM5Moderate42%
12AM3Moderate51%
1AM2Low55%
2AM1Low52%
3AM0Low43%
4AM0Low34%
5AM0Low27%