Official National Weather Service observations recorded a daily maximum of 87°F at Atlanta Hartsfield-Jackson International Airport on October 13, 2026, under clear skies and light northwest winds that allowed strong daytime heating. This value exceeded the 1991–2020 normal high of 75°F and tied or surpassed the previous record of 86°F set in 1954, aligning precisely with the market's 86–87°F outcome. Persistent high pressure and a warm southerly flow maintained above-average temperatures through the afternoon peak around 3 PM. Only a significant revision in final quality-controlled station data or a redefinition of the measurement site could alter resolution, though preliminary climatological reports show strong consistency across metro Atlanta sensors.