Wisconsin Weather Today: Severe Thunderstorm Watch In Effect For Milwaukee, Waukesha, Racine, Kenosha, Jefferson & Walworth Counties As Damaging Winds & Heavy Rain Threaten; Check Latest Weather Alerts. FOX6’s current weather-alert information lists a severe thunderstorm watch for the six counties until 2 p.m. CDT Tuesday. Wisconsin Severe Thunderstorm Watch: Which Counties are Included? Latest Wisconsin Weather AlertsThe National Weather Service remains the key source for official watches, warnings and advisories. Wisconsin Weather TodaySoutheastern Wisconsin is facing a Tuesday thunderstorm threat, with Milwaukee, Waukesha, Racine, Kenosha, Jefferson and Walworth counties under a severe thunderstorm watch through 2 p.m. CDT.