Latest National Weather Service and private model guidance points to a daily high in Atlanta on August 21 near 91–94 °F under typical late-summer southerly flow, with modest afternoon heating and scattered thunderstorm chances that could limit peak readings. This aligns with the market’s leading 92–93 °F bin, as Atlanta’s August climatology centers on 88–90 °F highs but frequently exceeds 92 °F when high pressure builds without strong frontal passages. Recent runs show limited spread between guidance packages, keeping 90–95 °F outcomes dominant while the small tail probabilities for 96 °F+ reflect the low but nonzero chance of drier, clearer conditions boosting insolation. Updated NWS briefings and morning model cycles tomorrow will provide the final inputs ahead of market resolution.