UV Index
UV Index
Today's UV index in Milwaukee, United States 
will be up to 7.9, indicating a high level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.
Last checked: 2025-05-13
With Milwaukee's UV index reaching 7.9, protect your skin from harm by staying in shade, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours, especially between 10 a.m. and 4 p.m. when UV rays are strongest.
Milwaukee's UV index varies throughout the year, reaching higher levels in summer, typically around 7 to 8, and lower levels in winter, often between 0 and 2. The UV index is moderate in spring and fall.
Milwaukee experiences four distinct seasons: cold winters with snow and ice, warm and humid summers, mild springs with increasing sunshine, and colorful falls with cooling temperatures. Seasonal changes are quite noticeable.
Compared to the wider Midwest, Milwaukee has slightly cooler winters due to Lake Michigan's influence and more humidity in summer. Neighboring cities like Chicago share similar patterns, but Milwaukee often feels a bit cooler in winter.
See the UV index hour by hour for Milwaukee, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.