The weather across various regions is characterized by significant variability and a mix of hot, humid conditions and thunderstorms. The D.C. area has experienced above-average temperatures, with highs in the low to mid-90s, and thunderstorms expected, potentially bringing brief heavy rain and lightning. Similarly, the Boston area is seeing widespread rain due to a coastal low-pressure system, with temperatures being held down in the low 70s. Southern Arizona is facing monsoon storms with potential for severe weather, including heavy rain and flash floods, while Central Florida is also experiencing high temperatures, with a heat index peaking at 105, and scattered showers and thunderstorms. Cooler temperatures and continued rain are expected in some areas, including possible severe thunderstorms in the Northeast and the Midwest.