An active weather week is anticipated, with severe storms possible on Monday afternoon across the Upper Midwest and Great Lakes regions. Forecasters warn of potential large hail, damaging winds, and even tornadoes, particularly in areas like the Twin Cities and western Wisconsin. Temperature changes may lead to a volatile weather day, transitioning from 80-degree warmth to stormy conditions. Alerts have been issued for multiple days this week, with expectations of heavy rain and severe thunderstorms continuing into midweek. Meteorologists are advising residents to stay prepared for severe weather, as the threat covers over 70 million people in the affected areas.