Milwaukee is waking to a muggy, partly cloudy Tuesday, but the quiet start is only a brief setup for a potentially rough midmorning. Temperatures around 72°F early will rise to near 79°F before showers and thunderstorms move across southern Wisconsin, with the strongest storms capable of damaging winds and quick flooding. The storm window should ease by early afternoon, leaving a drier finish.
The National Weather Service Milwaukee/Sullivan office expects the storm line to sweep across the region from late morning into early afternoon Tuesday, August 11. The strongest cells could produce damaging wind gusts, frequent lightning and localized flooding, with the heaviest downpours most likely near the Wisconsin-Illinois border. Rainfall should total roughly a quarter to half inch in many spots, while isolated storm cores could drop an inch or two quickly.
A Rough Commute, Then A Quieter Afternoon
Milwaukee’s Tuesday high should reach about 79°F, with southeast winds mostly between 0 and 5 mph. The storm risk is highest before 5 p.m., and the hourly forecast trends back toward partly sunny conditions by late afternoon. Drivers should allow extra time for ponding and sudden visibility drops, while anyone outdoors should move inside when thunder is heard…