Nashville

Nashville Faces 100°+ Heat Index Next Monday And Tuesday

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Published on July 23, 2026
Nashville Faces 100°+ Heat Index Next Monday And TuesdaySource: Google Street View

Middle Tennessee is about to crank the heat back up. Early next week, Nashville heads into yet another stretch of dangerous, swampy weather, with feels-like temperatures forecast between 100° and 110° across much of the region. Daytime highs are expected to land in the mid to upper 90s, and the mix of brutal heat and soupy humidity has local officials urging extra caution for older adults, outdoor workers and anyone without reliable air conditioning.

According to WSMV, the station’s First Alert Weather team has declared Monday and Tuesday First Alert Weather Days as "stifling levels of heat and oppressive humidity" move back into the Midstate. Forecasters there expect both days to reach the mid to upper 90s, with a heat index generally running in the 100° to 110° range.

The National Weather Service in Nashville has placed much of Middle Tennessee under Heat Advisories, and in some places Extreme Heat Warnings, cautioning that heat-index values could climb as high as 110°F on Tuesday. NWS Nashville has also highlighted a slight risk for severe thunderstorms late Tuesday into Tuesday night, with damaging wind gusts the main concern.

Metro Nashville's Office of Emergency Management says it has been running heat patrols, handing out water and doing outreach to vulnerable residents. The agency is urging people to stay hydrated, avoid strenuous activity during the hottest hours of the day and check in on elderly or medically fragile neighbors. In a media release, Metro officials also repeat a familiar warning for this kind of stretch: never leave children or pets in parked cars, even for a short time.

Heat outlook and odds

Forecast data from the Weather Prediction Center show the odds going up that Nashville’s maximum heat index will top 100°F on multiple days next week, with at least some chance of readings pushing toward 110°F on a few forecast grids, according to the WPC. The probability map underscores how the mix of very warm afternoons and high dew points will keep heat-related risks elevated for anyone working, playing or exercising outside.

How to stay safe

Public health guidance here is not subtle: stay in air-conditioned spaces when you can, drink plenty of water, skip heavy exertion during the hottest part of the day, and know the warning signs of heat illness such as dizziness, nausea or confusion, according to the CDC. For residents without reliable cooling, local programs are trying to fill the gap: Metro Action Commission's Summer Cooling program has been distributing free window units and fans to qualifying Davidson County households, as reported in free AC units to Nashville homes.

Forecasts will be updated through the weekend, so keep an eye on the National Weather Service, local TV forecasts such as WSMV, and city alerts for any changes. If someone shows signs of heat stroke, including confusion, rapid breathing, fainting, or seizures, get them to a cooler place immediately and call 911.