Do I need sunscreen today in St. Louis, MO
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
11AM
3PM
7PM
11PM
3AM
LowModerateHigh
Hourly UV and cloud cover
UV index is unitless. Cloud cover is shown as a percentage.
HourUV indexCloud cover
12PM0Low93%
1PM1Low85%
2PM2Low78%
3PM2Low72%
4PM3Moderate70%
5PM3Moderate61%
6PM4Moderate53%
7PM5Moderate46%
8PM5Moderate39%
9PM6High32%
10PM4Moderate26%
11PM3Moderate25%
12AM1Low22%
1AM1Low18%
2AM0Low12%
3AM0Low9%
4AM0Low7%