Many of us will need a jacket or even a coat if you are the type as we head out the door Monday morning. Monday 8am temperatures will be below 50 degrees F for many (except for SC, GA, and FL), which will prompt the outerwear. This chilly air will linger into early Tuesday, but then as the week progresses we warm up significantly. See our article Time to Turn on Your A/C
Also watch for severe thunderstorms and tornadoes in the Plains this week on the news, as there will be a multi-day outbreak.