Lebanon, Tennessee 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

639
FXUS64 KOHX 300006
AFDOHX

Area Forecast Discussion
National Weather Service Nashville TN
706 PM CDT Mon Jun 29 2026

...New UPDATE...

.KEY MESSAGES...
Updated at 701 PM CDT Mon Jun 29 2026

- Dangerous heat and humidity today through late this week (and
  possibly into the weekend). An Extreme Heat Warning is in effect
  through Thursday for much of the area.

- High temperatures in the mid to upper 90s across the warning
  area, with afternoon heat index values as hot as 112. Overnight
  lows will also remain uncomfortably warm, only falling into the
  mid to upper 70s most areas.

- Low chances for rain and storms will emerge later in the week.

&&

.UPDATE...
Issued at 701 PM CDT Mon Jun 29 2026

A strong surface ridge has set up just east of Middle Tennessee
this evening while the upper high circulates right over the top
of us. So there`s a lot of subsidence going on and, needless to
say, the atmosphere is considerably drier despite the high surface
dew points. Heat and humidity will continue as expected with no
rain chances at least through Tuesday night.

&&

.SHORT TERM...
(Rest of today through Tuesday)
Issued at 1158 AM CDT Mon Jun 29 2026

An upper level ridge has centered itself over Middle TN and will
amplify over the next few days. This will bring an extended
period of dangerously hot conditions at least through Friday.
Highs today will reach the mid to upper 90s for much of the area.
Once you factor in dew points in the low to mid 70s it will feel
as warm as 108 this afternoon. Lows tonight will remain warm only
falling into the mid to upper 70s, this will limit relief from
the heat especially to those that do not have air conditioning.

As the heat lingers and builds over the area we will see extreme
heat risk Tuesday lasting through the remainder of the week.
Extreme Heat Risk means that there is rare and or long duration
extreme heat with little to no overnight relief affecting anyone
without cooling/hydration as well as health systems, industries,
and infrastructure. Highs Tuesday will push into the mid to upper
90s and it will remain very humid pushing afternoon heat index
values as hot as 108.

&&

.LONG TERM...
(Tuesday Night through next Monday)
Issued at 1158 AM CDT Mon Jun 29 2026

The upper level ridge will be centered over Middle TN on Wednesday
and this will likely be the peak of the heat wave with highs in
the mid 90s to right around 100. Afternoon heat index values will
get as warm as 112. Overnight lows Tuesday night through Wednesday
night will be very warm in the mid to upper 70s with some areas
possibly staying in the lower 80s. The upper level ridge will
start to drift to the east mid to late week and will slowly start
to flatten. The cooling will be very limited with highs staying
in the mid to upper 90s through Friday and very hot heat index
values. It looks like we will see some cooling over the July 4th
weekend but not a ton, it will still be very hot and you should
plan for the heat if you have outdoor plans. Highs over the
weekend will remain in the low to mid 90s with heat index values
as warm as 107. Additional cooling is expected Monday as a short
wave trough pushes into the Great Lakes. This will continue to
flatten the ridge and drop our highs back into the upper 80s to
lower 90s. As the ridge pushes east late week we will see low
chances for popup showers and thunderstorms mainly during the
afternoons and early evenings. These low thunderstorm chances look
to continue into the holiday weekend.

&&

.AVIATION...
(00Z TAFS)
Issued at 609 PM CDT Mon Jun 29 2026

VFR conditions are expected to prevail at BNA/MQY/CKV. Patchy fog
is expected to develop on the plateau after 06z with low to medium
chances of impacting CSV/SRB. Any fog will mix out by 13z with
VFR conditions for the remainder of the forecast. Winds are
expected to be 5 kts or less.

&&

.PRELIMINARY POINT TEMPS/POPS...
Nashville      78  99  79  99 /   0   0   0  10
Clarksville    75  97  76  98 /   0   0   0  10
Crossville     71  91  72  92 /   0  10   0  20
Columbia       75  99  77  99 /   0   0   0  20
Cookeville     73  92  74  93 /   0   0   0  10
Jamestown      71  91  71  93 /   0   0   0  10
Lawrenceburg   75  96  76  96 /   0   0   0  20
Murfreesboro   76  99  77 100 /   0   0   0  10
Waverly        75  97  76  98 /   0   0   0  20

&&

.OHX WATCHES/WARNINGS/ADVISORIES...
Extreme Heat Warning until 8 PM CDT Thursday for TNZ005>010-
023>032-056>064-075-093>095.

Heat Advisory from 10 AM Tuesday to 8 PM CDT Thursday for TNZ011-
033-034-065-066-077>080.

&&

$$

UPDATE.......Rose
SHORT TERM...Mueller
LONG TERM....Mueller
AVIATION.....Reagan