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<p>Dangerously hot weather could arrive this weekend as Chicagoans celebrate at Pride festivals, then persist throughout next week and into the July 4th holiday.</p><p>High temperatures are forecast in the 90s, with heat indices potentially surpassing 100 degrees, from Monday through Friday, according to the National Weather Service.</p><p>Sunday, when Chicago’s 55th annual Pride Parade is scheduled, is forecast to reach 85 degrees, according to the weather service.</p><p>Whether the heat wave extends into July 4 depends on if storms that could cool the area develop next Friday, said NWS meteorologist Zachary Yack.</p><p>“If we don’t get the storms, then there’s a chance it could linger into next weekend. That’s the tricky and hard part to answer right now,” Yack said.</p><p>High air pressure entering the Midwest and eastern half of the U.S. is expected to “stay parked there” and create what’s referred to as a “heat dome” over the area, Yack said.</p><p>“When you have that, plus the summertime sunning, it all leads to just hot temperatures, humidity and, of course, those heat indices of more concerning and dangerous levels for those who are sensitive to heat,” Yack said.</p><p>Officials with the NWS and the Chicago Office of Emergency Management and Communications are urging residents to begin planning for the hot weather ahead of time.</p><div class="Enhancement" data-align-center><div class="Enhancement-item"> <div class="ExternalContent-wrapper" > <div class="TweetUrl"> <blockquote class="twitter-tweet"><p lang="en" dir="ltr">[3:25 PM CDT Friday 6/26/2026] The first bona fide heat wave of the summer is on the way next workweek.