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Nashville logs second-hottest September as October heat sets another mark
September averaged 81.1 degrees in Nashville, about 8 degrees above normal, while October recorded five days in the 90s—the second-most for the month. The region’s late-season heat is expected to ease, with no comparable heat wave anticipated before 2027.
Middle Tennessee’s late-summer heat extended into autumn, putting both September and October 2026 among Nashville’s notable months for high temperatures.
September averaged 81.1 degrees, roughly 8 degrees above normal, making it the city’s second-hottest September on record. Highs reached the 90s or 100s on 21 days during the month, before temperatures dropped to more typical levels on Sept. 22, the first day of astronomical autumn.
October had five days with highs in the 90s, the second-highest total for that month in Nashville’s recorded weather history. The October record is six such days, set in 1941. The latest date Nashville has recorded a temperature in the 90s is Oct. 19, a mark set in 2016; temperatures on Oct. 19, 2026, were not expected to extend that record.
Forecasts called for a few days in the low 80s over the following couple of weeks, but not a sustained return to extreme heat. The next major heat wave was not expected until 2027.