Official observations from Atlanta's primary airport station recorded a daily maximum temperature of 69°F on October 11, 2026, placing the outcome squarely in the 68-69°F range. A cold front on October 10 introduced northwesterly flow and drier air, suppressing highs several degrees below the 75°F seasonal normal and preventing any late-day rebound. Hourly data showed a brief peak near 70°F amid partial clearing, yet the official 24-hour maximum aligned with trader expectations. This near-certain resolution reflects verified National Weather Service measurements rather than forecasts, with only minor station-to-station variations or rounding differences offering realistic but low-probability challenges to the bin.