Nashville/ Weather & Environment

Nashville Forecast Turns Cooler Before Temperatures Rise

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Published on September 23, 2026
Nashville Forecast Turns Cooler Before Temperatures RiseSource: Google Street View

Nashville is coming off an earlier September heat episode.

Showers Remain Mainly East

Showers and thunderstorms remain mainly focused on the Cumberland Plateau rather than Nashville.

The general outlook through September 27 includes highs in the mid-80s and overnight lows in the low to mid-60s.

Cooler Conditions Through the Weekend

Friday through Sunday are included in a forecast of mid-80s highs and low-to-mid-60s overnight lows through September 27.

Above-Normal Temperatures Favored Next Week

Above-normal temperatures are favored next week.

How This Heat Fits the Bigger Picture

According to The Commercial Appeal, citing NOAA data, Tennessee had the 14th-hottest summer in 2026, with an average temperature of 77 degrees. That statewide seasonal ranking does not describe Nashville’s forecast, and by itself does not establish whether very hot days have become more frequent over the long term. For comparison, WSMV reported that Nashville reached 100 degrees on Sept. 3 and Sept. 4 during an earlier September heat episode, separate from this week’s forecast cooldown.