The week begins with dangerously high temperatures across various regions in the U.S., with forecasts predicting highs ranging from the upper 90s to low 100s in places like Mississippi, Indiana, and Utah. Tropical Storm Debby is impacting the Georgia coastline, causing flooding and road closures from Georgia to Virginia. Relief from the heat is expected by the weekend, as cooler temperatures and potential rain showers move in. Some areas, such as the Wasatch Front and Hudson Valley, have severe weather warnings, including the possibility of storms with damaging winds. Despite the high temperatures, the humidity is a significant factor in making conditions feel hotter. By midweek, many regions are expected to experience significant drops in temperature, with highs falling into the 70s and 80s.