National Weather Service United States Department of Commerce

6/27/26 530 AM - After pleasant conditions with comfortable humidity for the start of the weekend, look for hot and very humid conditions by Monday. The heat and humidity will continue through the week with heat indices around 100 degrees. Additionally, there is chance for afternoon showers on Sunday with chances for thunderstorms in the evening and overnight, some of which may be strong to severe.
6/27/26 530 AM - High temperatures are expected to rise into the lower to middle 90s on Monday away from Lake Michigan. With the surge of very humid conditions, afternoon heat indices may reach 105 degrees. Be sure to take precautions to beat the heat, including drinking plenty of water and wearing lightweight loose clothing. And, never leave kids or pets unattended in vehicles, even if for just a few minutes!
6/27/26 530 AM - Isolated strong to severe storms are possible Sunday evening and Sunday night, especially over northern WI. The primary risks will be large hail, damaging winds and locally heavy rain.