Milwaukee and its surrounding regions are navigating the significant impacts of a record-shattering rainfall event that occurred on August 9, 2025. The city experienced an extraordinary 5.74 inches of rain in a single day, surpassing the previous daily record and causing extensive flooding across southeastern Wisconsin, with some areas reporting up to 13 inches of precipitation. The Milwaukee River surged to unprecedented levels, exceeding its prior record set in 2010, reaching a crest of 11.19 feet at Estabrook Park. A weather emergency was declared to expedite resource mobilization and seek state and federal aid.
The severity of the conditions led to the cancellation of the final day of the Wisconsin State Fair, as the grounds became unsafe. Emergency services reported responding to over 600 calls, including numerous water rescues, with approximately 47,000 customers experiencing power outages. This extreme weather event, impacting the central United States, highlighted urban infrastructure vulnerabilities. The Milwaukee Fire Department reported over 600 emergency situations, including 55 water rescues within the city. The USA Triathlon's Sprint and Paratriathlon National Championships were also canceled due to the hazardous conditions. Authorities continue to warn residents about the dangers of floodwaters and advise against unnecessary travel, as the potential for additional storms complicates recovery efforts.