Peak UV index by city
| City | Population | Peak UV | Exposure | UV 3+ hours |
|---|---|---|---|---|
| Milwaukee | 562,407 | 1 | Low | Below 3 all day |
| Madison | 286,233 | 1 | Low | Below 3 all day |
| Green Bay | 106,675 | 2 | Low | Below 3 all day |
| Kenosha | 99,239 | 1 | Low | Below 3 all day |
| Racine | 77,908 | 1 | Low | Below 3 all day |
| Appleton | 75,452 | 2 | Low | Below 3 all day |
| Eau Claire | 72,465 | 0 | Low | Below 3 all day |
| Waukesha | 70,872 | 2 | Low | Below 3 all day |
| Oshkosh | 67,460 | 2 | Low | Below 3 all day |
| Janesville | 66,929 | 1 | Low | Below 3 all day |
| West Allis | 60,119 | 1 | Low | Below 3 all day |
| La Crosse | 50,784 | 0 | Low | Below 3 all day |
| Sheboygan | 49,376 | 2 | Low | Below 3 all day |
| Wauwatosa | 48,649 | 1 | Low | Below 3 all day |
| Fond du Lac | 44,541 | 2 | Low | Below 3 all day |
| Brookfield | 41,448 | 2 | Low | Below 3 all day |
| Menomonee Falls | 41,291 | 1 | Low | Below 3 all day |
| Wausau | 40,188 | 2 | Low | Below 3 all day |
| New Berlin | 39,953 | 1 | Low | Below 3 all day |
| Sun Prairie | 39,227 | 1 | Low | Below 3 all day |
| Oak Creek | 38,296 | 1 | Low | Below 3 all day |
| Greenfield | 37,159 | 1 | Low | Below 3 all day |
| Franklin | 36,687 | 1 | Low | Below 3 all day |
| Beloit | 36,649 | 1 | Low | Below 3 all day |
| Manitowoc | 34,671 | 2 | Low | Below 3 all day |
| Fitchburg | 34,615 | 1 | Low | Below 3 all day |
| West Bend | 32,268 | 1 | Low | Below 3 all day |
| Mount Pleasant | 28,253 | 1 | Low | Below 3 all day |
| Neenah | 27,638 | 2 | Low | Below 3 all day |
| Superior | 26,397 | 0 | Low | Below 3 all day |
| Stevens Point | 26,377 | 1 | Low | Below 3 all day |
| Muskego | 25,602 | 2 | Low | Below 3 all day |
| De Pere | 25,590 | 2 | Low | Below 3 all day |
| Caledonia | 25,229 | 1 | Low | Below 3 all day |
| Mequon | 25,120 | 1 | Low | Below 3 all day |
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.
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