This Labor Day weekend, various regions in the U.S. are expected to experience unsettled weather with thunderstorms and potential severe weather. In South Florida, a high chance of thunderstorms and possible flooding is forecasted, while Pittsburgh may see severe storms with damaging winds and large hail. Philadelphia will navigate through cold fronts bringing showers and storms, but no severe weather is expected. Similarly, Rochester, Minnesota, and surrounding areas face threats of large hail, damaging winds, and potential tornadoes. Despite these conditions, some areas like Northeast Wisconsin and Rochester will clear up, offering sunny and comfortable weather for much of the holiday weekend. Labor Day itself is expected to bring more stable weather with mostly sunny skies and cooler temperatures across several regions.