Milwaukee, Wis. – Fireworks watchers in Wisconsin should prepare for sweltering heat and patchy thunderstorms through the 4th of July, with heat index values nearing 100°F across parts of the state.
According to the National Weather Service in Milwaukee/Sullivan, conditions will remain mostly calm into Wednesday morning, with increasing humidity and temperatures climbing into the upper 80s by Independence Day. While no all-day washouts are forecast, isolated showers and storms are possible Wednesday afternoon through Thursday night, especially in southern and eastern counties.
In Milwaukee, highs could hit 88°F on the 4th, with heat index values pushing well into the 90s by mid-afternoon. Madison and Racine may also feel similar conditions, making it important to stay hydrated and limit outdoor activity during peak hours. Winds from the northwest around 10 mph may offer limited relief.
Travelers heading to holiday events or fireworks displays should monitor radar for storm activity, especially in areas like Kenosha and Waukesha. Roads could become slick during brief downpours. Officials recommend checking for local alerts and preparing for muggy evenings with minimal breeze.
Storm chances continue into Thursday night, but major disruptions are unlikely. Another update is expected by late Wednesday.
