Under The Heat Advisory
Sunday, September 6, 2026 · 12:20 AM
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Major heat risk and triple digit heat indices continue across southwest Middle Tennessee with a Heat Advisory remaining in effect until eight P.M. Sunday. Heat risk lessens early next week, but temperatures remain above-normal through the forecast period. Rain chances are low through this week. Inverted V soundings on the evening display Plenty of downdraft convective potential coming our way Strong winds blasting down through the midnight air Southwest Middle Tennessee strutting without a care Plateau watching patchy fog roll in real slow While Nashville records three straight triple digit shows Drier air dropping heat indices under one hundred degrees A little dip in temperature bringing us to our knees High pressure shifting back to the southeast shore Mid-nineties Wednesday pushing us to ask for more Eight P.M. Sunday hanging on the bedroom door We are strutting through the fire under the heat advisory! Highs in the mid-eighties for the Plateau on Monday Weak little disturbance giving storms a quiet runway Upper-eighties to low-nineties west of the line It is still above normal and feeling extra fine Thursday brings a cold front that cannot stop the flame Above normal temperatures still dominate the game No rain saving anyone from what we got in store Just the heat risk staying right outside your door High pressure shifting back to the southeast shore Mid-nineties Wednesday pushing us to ask for more Eight P.M. Sunday hanging on the bedroom door We are strutting through the fire under the heat advisory! Under the heat advisory! Yeah, under the heat advisory! Eight P.M. Sunday, let it burn! Under the heat advisory!
The forecast discussion
KEY MESSAGES
Updated at 1220 AM CDT Sun Sep 6 2026
- Major heat risk and triple digit heat indices continue across southwest Middle TN with a Heat Advisory remaining in effect until 8 PM Sunday.
- Heat risk lessens early next week, but temperatures remain above-normal through the forecast period.
- Rain chances are low through this week.
SHORT TERM
(Tonight through Monday Night) Issued at 1021 PM CDT Sat Sep 5 2026
A weak disturbance is passing through the area this evening, and an unstable environment will continue to support a low chance for thunderstorms through about midnight.
Main concern will continue to be strong winds due to inverted-V soundings and plenty of DCAPE.
Once thunderstorms diminish, a calm night is then in store with just the development of patchy fog, particularly across the Plateau, to watch.
Dry conditions expected on Sunday with a little bit of a dip in the temperatures.
Look for highs in the upper-80s for the Plateau and into the mid-90s elsewhere.
Still above normal, but certainly better than the three consecutive days of triple digits that BNA has recorded.
Thanks to the drier air, heat indices will also stay below 100 with the exception being across the southwest where a Heat Advisory remains in effect through Sunday for those counties.
Temperatures cool a little bit more on Monday with highs in the mid- 80s for the Plateau and into the low-90s west of it. Most of the area remains dry, but another weak disturbance allows for low to medium storm chances across the Plateau.
LONG TERM
(Tuesday through next Sunday) Issued at 1021 PM CDT Sat Sep 5 2026
Unfortunately, the main story continues to be the heat.
By Tuesday, the high pressure shifts back over the southeastern US, and temperatures will warm in response.
Highs will be back in the mid- 90s Wednesday.
It won't be quite as hot and humid as what we've been experiencing lately, but it'll still be uncomfortable with temperatures that are well above normal for September.
A pattern change on Thursday brings a front into the area which increases rain chances into the weekend.
While this front drops temperatures some, it won't be as strong as you may hope for as above normal temperatures continue to be favored.