National Weather Service United States Department of Commerce

1 PM {7/20/2026} Severe thunderstorms are expected late this afternoon and evening, as early as 2 PM through as late as 11 PM with the greatest threat between 4 and 9 PM. In severe storms that develop, primary threats include damaging winds (70+ mph), large hail (golfball size or larger), isolated strong tornadoes, and heavy rain leading to localized flooding in poor drainage and urban areas. Not every location will see a severe storm, but the threat for severe storms is area-wide. Be sure to have multiple ways to receive warnings.
Today will be the warmest day of the week, along with an increasing risk of severe storms. Large hail, winds in excess of 60 mph and tornadoes will be possible. For the rest of the week, temperatures will be near or slightly below normal along with comfortable humidity values.
Increasing southwesterly winds will result in hazardous conditions for small craft, while high waves at Lake Michigan beaches will result in an increased risk of rip currents Monday and Monday night.