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Gallatin, Tennessee 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
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NWS Forecast for Gallatin TN
National Weather Service Forecast for:
Gallatin TN
Issued by: National Weather Service Nashville, TN |
| Updated: 2:11 pm CDT Jun 26, 2025 |
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This
Afternoon
Slight Chance
T-storms
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Tonight
Slight Chance
T-storms and
Patchy Fog
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Friday
Chance
T-storms and
Patchy Fog
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Friday
Night
Chance
T-storms
|
Saturday
T-storms
Likely
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Saturday
Night
Chance
T-storms then
Chance
Showers and
Patchy Fog
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Sunday
T-storms
Likely
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Sunday
Night
Chance
T-storms
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Monday
Chance
Showers then
T-storms
Likely
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| Hi 95 °F |
Lo 72 °F |
Hi 93 °F |
Lo 72 °F |
Hi 90 °F |
Lo 72 °F |
Hi 90 °F |
Lo 72 °F |
Hi 91 °F |
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Heat Advisory
This Afternoon
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A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95. Heat index values as high as 103. Calm wind. |
Tonight
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A 20 percent chance of showers and thunderstorms, mainly between 1am and 2am. Patchy fog between 3am and 4am. Otherwise, mostly cloudy, with a low around 72. Calm wind. |
Friday
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A 40 percent chance of showers and thunderstorms, mainly after 5pm. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 93. Heat index values as high as 103. Calm wind becoming west around 5 mph in the afternoon. |
Friday Night
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A chance of showers and thunderstorms before 9pm, then a slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. East southeast wind around 5 mph becoming calm. Chance of precipitation is 30%. |
Saturday
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A chance of showers, then showers and thunderstorms likely after 10am. Partly sunny, with a high near 90. Calm wind becoming west southwest around 5 mph in the morning. Chance of precipitation is 60%. |
Saturday Night
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A 30 percent chance of showers and thunderstorms. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 72. South southwest wind around 5 mph becoming calm. |
Sunday
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Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a high near 90. Calm wind becoming southwest around 5 mph. Chance of precipitation is 70%. |
Sunday Night
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A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 72. Calm wind. Chance of precipitation is 30%. |
Monday
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Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 91. Calm wind becoming west southwest around 5 mph in the afternoon. Chance of precipitation is 70%. |
Monday Night
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A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. |
Tuesday
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Showers and thunderstorms likely. Mostly cloudy, with a high near 87. Chance of precipitation is 60%. |
Tuesday Night
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A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. |
Wednesday
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A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89. |
Wednesday Night
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Partly cloudy, with a low around 67. |
Thursday
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A slight chance of showers and thunderstorms. Mostly sunny, with a high near 89. |
Forecast from NOAA-NWS
for Gallatin TN.
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Weather Forecast Discussion
953
FXUS64 KOHX 261735
AFDOHX
Area Forecast Discussion
National Weather Service Nashville TN
1235 PM CDT Thu Jun 26 2025
...New AVIATION...
.KEY MESSAGES...
Updated at 1233 PM CDT Thu Jun 26 2025
- Dangerous heat will continue through Friday as heat index
values reach into the triple digits each day.
- Rain chances will gradually increase late this week and
especially this weekend.
- Temperatures will taper off closer to seasonal normals next
week.
&&
.SHORT TERM...
(Rest of today through Friday)
Issued at 1051 AM CDT Thu Jun 26 2025
We are a touch cooler right now than we have been previous days
due to a rather large area of rain and thunderstorms that pushed
north through the western half of the area this morning.
Temperatures are sitting around 80 to 85 degrees, however,
satellite does show pockets of clearing within the cloud shield,
so temperatures will continue to rise through the afternoon. With
dew point temperatures still in the 70s, today will once again
feature very hot and humid conditions with heat index values in
the triple digits. As for thunderstorm development through the
remainder of today, the latest HREF brings pretty widespread
scattered activity this afternoon assuming clouds continue to
clear out enough for instability to ramp back up. Similar to
previous days this week, there is very little thermodynamic
support for severe thunderstorms as bulk shear values are in the
single digits and mid-level lapse rates are poor. CAPEs will be
high, though, so any storms that do develop will likely go up very
quick. DCAPE values jumped out at me today with values near 1300
J/kg, and coupled with PWAT values still near 1.70", very heavy
downpours will be possible. This could lead to gusty winds and
flash flooding, so be very cautious if you get caught under a
storm today.
Activity will dwindle down this evening and it will be another
warm and muggy night with lows in the mid 70s. Friday will feature
similar conditions with perhaps more widespread convection as the
ridge continues to break down.
&&
.LONG TERM...
(Friday Night through next Thursday)
Issued at 1051 AM CDT Thu Jun 26 2025
The heat advisory will finally be allowed to expire at 7 PM
Friday. As we move into the weekend, daily rain and thunderstorm
chances will stay with us as we lose the influence of the ridge.
It will still be hot and humid, but temperatures will be back
closer to what we`re used to in late June as drier air is allowed
to mix back in, keeping heat indicies lower. An upper level low
will move across the Great Lakes at the start of the work week
that will eventually bring a front through the area. This
currently looks to happen on Tuesday. PWAT values look to increase
once again to near 2" which exceeds the 90th percentile sounding
climatology for Nashville. Efficient rainfall rates will be
possible with any activity we see through mid week, so again, be
on the lookout for any flooding. On the plus side, bulk shear
values currently look low each day, generally less than 10 kts,
so this does not favor severe weather. Temperatures will be near
normal through next week with daily highs in the upper 80s to low
90s.
&&
.AVIATION...
(18Z TAFS)
Issued at 1233 PM CDT Thu Jun 26 2025
Light and variable to light SW winds this afternoon with VFR
conditions. Scattered thunderstorms develop across the CWA late
this afternoon into early evening. Tonight, some areas of reduced
VIS is possible throughout Middle TN. VFR conditions and light
winds continue through Friday.
&&
.PRELIMINARY POINT TEMPS/POPS...
Nashville 74 93 75 92 / 20 40 20 60
Clarksville 74 93 74 90 / 10 20 30 60
Crossville 68 87 68 85 / 20 60 30 70
Columbia 72 92 72 91 / 20 50 20 60
Cookeville 70 88 70 86 / 20 50 30 70
Jamestown 69 88 68 86 / 10 50 30 70
Lawrenceburg 71 91 71 89 / 30 50 20 60
Murfreesboro 72 93 72 91 / 20 50 20 60
Waverly 72 91 72 91 / 20 20 20 50
&&
.OHX WATCHES/WARNINGS/ADVISORIES...
Heat Advisory until 7 PM CDT Friday for TNZ005>011-023>034-
056>066-075-077>080-093>095.
&&
$$
SHORT TERM...Baggett
LONG TERM....Baggett
AVIATION.....Cravens
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