Peak UV index by city
| City | Population | Peak UV | Exposure | UV 3+ hours |
|---|---|---|---|---|
| Kansas City | 521,220 | 3 | Moderate | 11 AM–2 PM |
| St. Louis | 278,144 | 2 | Low | Below 3 all day |
| Springfield | 169,847 | 4 | Moderate | 11 AM–2 PM |
| Columbia | 130,851 | 2 | Low | Below 3 all day |
| Independence | 121,675 | 3 | Moderate | 11 AM–2 PM |
| Lee's Summit | 107,514 | 3 | Moderate | 11 AM–2 PM |
| O'Fallon | 96,101 | 2 | Low | Below 3 all day |
| St. Charles | 72,561 | 2 | Low | Below 3 all day |
| St. Joseph | 71,001 | 3 | Moderate | 12 PM–2 PM |
| Blue Springs | 61,632 | 3 | Moderate | 11 AM–2 PM |
| St. Peters | 61,479 | 2 | Low | Below 3 all day |
| Joplin | 53,930 | 4 | Moderate | 11 AM–3 PM |
| Florissant | 51,124 | 2 | Low | Below 3 all day |
| Wentzville | 49,495 | 2 | Low | Below 3 all day |
| Chesterfield | 49,309 | 3 | Moderate | 11 AM–1 PM |
| Jefferson City | 42,489 | 2 | Low | Below 3 all day |
| Cape Girardeau | 40,977 | 2 | Low | Below 3 all day |
| Wildwood | 34,955 | 3 | Moderate | 11 AM–12 PM |
| University City | 34,657 | 2 | Low | Below 3 all day |
| Liberty | 31,319 | 3 | Moderate | 12 PM–2 PM |
| Ballwin | 30,901 | 3 | Moderate | 11 AM–1 PM |
| Kirkwood | 29,331 | 3 | Moderate | 11 AM–1 PM |
| Raytown | 29,154 | 3 | Moderate | 11 AM–2 PM |
| Maryland Heights | 27,559 | 2 | Low | Below 3 all day |
| Gladstone | 27,497 | 3 | Moderate | 12 PM–2 PM |
| Grandview | 26,653 | 3 | Moderate | 11 AM–2 PM |
| Raymore | 26,633 | 3 | Moderate | 11 AM–2 PM |
| Nixa | 26,597 | 4 | Moderate | 11 AM–3 PM |
| Belton | 26,193 | 3 | Moderate | 11 AM–2 PM |
UV 3+ hours show the window from the first forecast hour at 3 or above to the end of the last. The EPA recommends sun protection at UV 3 and above. Open a city for its current-hour forecast and hourly chart. Forecast sources and limitations.