As autumn officially kicks off, many regions are experiencing a noticeable transition to cooler weather. While the East is preparing for a true autumn feel, including brisk air and grey skies, parts of North Texas still face unusually warm temperatures, lingering from a summer heat wave. The first day of fall is accompanied by a mix of clouds and potential storms, with forecasters monitoring a developing marine storm that could affect the Northeast. Meanwhile, other areas are bracing for beneficial rain and cooler conditions as the week progresses. Despite some lingering summer-like heat in certain regions, people are encouraged to grab their sweaters as the season changes.