Near-Record Heat in Washington, D.C. Area Through Wednesday, Followed by Cooler Weather
The Washington, D.C. area is experiencing its first significant heat wave of the year, with temperatures reaching the low to mid-90s on Monday, May 18, 2026. According to the Capital Weather Gang, highs are expected to climb further into the mid- to upper-90s on Tuesday and Wednesday, potentially breaking several long-standing records. For instance, Dulles International Airport recorded 95°F (35°C) on Monday, surpassing its previous record of 91°F (33°C) set in 1987. Baltimore also reached 95°F (35°C), just shy of its record of 97°F (36°C). A cold front is forecast to arrive late Wednesday, bringing showers, thunderstorms, and a significant drop in temperatures. By Thursday, highs will only reach the 60s and 70s, with cooler and unsettled conditions expected into the weekend. 
