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Southaven, Mississippi 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Southaven MS
National Weather Service Forecast for: Southaven MS
Issued by: National Weather Service Memphis, TN
Updated: 12:45 am CDT Aug 15, 2025
 
Overnight

Overnight: Partly cloudy, with a low around 74. Calm wind.
Partly Cloudy

Friday

Friday: A slight chance of showers and thunderstorms before 2pm, then a slight chance of showers and thunderstorms after 4pm.  Sunny, with a high near 96. Heat index values as high as 105. Calm wind becoming south southeast around 5 mph in the afternoon.  Chance of precipitation is 20%.
Sunny then
Slight Chance
T-storms
Friday
Night
Friday Night: Mostly clear, with a low around 76. Southeast wind around 5 mph becoming calm.
Mostly Clear

Saturday

Saturday: A 20 percent chance of showers and thunderstorms after 1pm.  Sunny, with a high near 96. Heat index values as high as 106. Calm wind becoming northeast around 5 mph.
Sunny then
Slight Chance
T-storms
Saturday
Night
Saturday Night: Mostly clear, with a low around 76. East wind around 5 mph becoming calm.
Mostly Clear

Sunday

Sunday: Sunny and hot, with a high near 97. Calm wind becoming east northeast around 5 mph in the afternoon.
Hot

Sunday
Night
Sunday Night: Mostly clear, with a low around 76. East northeast wind around 5 mph becoming calm  in the evening.
Mostly Clear

Monday

Monday: Sunny and hot, with a high near 99. Calm wind becoming east southeast around 5 mph in the afternoon.
Hot

Monday
Night
Monday Night: Mostly clear, with a low around 76.
Mostly Clear

Lo 74 °F Hi 96 °F Lo 76 °F Hi 96 °F Lo 76 °F Hi 97 °F Lo 76 °F Hi 99 °F Lo 76 °F

Heat Advisory
 

Overnight
 
Partly cloudy, with a low around 74. Calm wind.
Friday
 
A slight chance of showers and thunderstorms before 2pm, then a slight chance of showers and thunderstorms after 4pm. Sunny, with a high near 96. Heat index values as high as 105. Calm wind becoming south southeast around 5 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
 
Mostly clear, with a low around 76. Southeast wind around 5 mph becoming calm.
Saturday
 
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 96. Heat index values as high as 106. Calm wind becoming northeast around 5 mph.
Saturday Night
 
Mostly clear, with a low around 76. East wind around 5 mph becoming calm.
Sunday
 
Sunny and hot, with a high near 97. Calm wind becoming east northeast around 5 mph in the afternoon.
Sunday Night
 
Mostly clear, with a low around 76. East northeast wind around 5 mph becoming calm in the evening.
Monday
 
Sunny and hot, with a high near 99. Calm wind becoming east southeast around 5 mph in the afternoon.
Monday Night
 
Mostly clear, with a low around 76.
Tuesday
 
Sunny and hot, with a high near 99.
Tuesday Night
 
Mostly clear, with a low around 76.
Wednesday
 
A 30 percent chance of showers and thunderstorms. Sunny and hot, with a high near 97.
Wednesday Night
 
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Thursday
 
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.

 

Forecast from NOAA-NWS for Southaven MS.

Weather Forecast Discussion
375
FXUS64 KMEG 150431
AFDMEG

Area Forecast Discussion
National Weather Service Memphis TN
1131 PM CDT Thu Aug 14 2025

...New DISCUSSION, AVIATION, FIRE WEATHER...

.KEY MESSAGES...
Updated at 1116 PM CDT Thu Aug 14 2025

- Hot and humid conditions continue across the Mid-South. High
  temperatures will generally be in the mid 90s today, increasing
  to the upper 90s this weekend.

- A Heat Advisory is in effect both today over eastern Arkansas
  and northwest Mississippi and West Tennessee, where heat indices
  of 104 to 107 prevail.

- An isolated thunderstorm or two is expected Friday afternoon.
  Most of the Mid-South will see no rainfall.

&&

.DISCUSSION...
(Tonight through next Thursday)
Issued at 1130 PM CDT Thu Aug 14 2025

The longwave trough responsible for our consecutive afternoon shower
and thunderstorm coverage is nearly parallel along the Mississippi
River at this hour. This slow moving trough will continue its
eastward progression on Friday. As the trough gets further away from
the area, coverage of showers and storms will decrease. Coverage
should be generally confined to north Mississippi, but a few storms
could sneak into West Tennessee. Lack of confidence in coverage does
bring up the question of afternoon max heat index values. Another
Heat Advisory will be in effect Friday from 11AM-7PM for the same
geographical region as the previous two days along with the some
addition to northern and eastern extent.

As the trough finally clears the area, high pressure will begin to
build and looks to dominate the rest of the forecast period. A
diurnally driven thunderstorm cannot be ruled out, but generally a
dry, hot and humid forecast is anticipated. Current model output
favors the ridge amplifying around 590 dam, allowing temperatures to
soar into the mid to upper 90s with heat indices in the triple
digits. Some portions of the Mid-South will need a heat advisory as
heat indices climb above 105, but this will need evaluated daily.

DNM

&&

.AVIATION...
(06Z TAFS)
Issued at 1130 PM CDT Thu Aug 14 2025

A few TSRA are expected again Friday afternoon, but with the
exception of TUP, coverage should below PROB30 mention threshold.
In the interim, areas of fog will likely develop at MKL and TUP once
mid and high level clouds thin.

PWB

&&

.FIRE WEATHER...
Issued at 1130 PM CDT Thu Aug 14 2025

Hot and dry conditions will build into the Midsouth this week,
persisting into early next week. Minimum daytime relative humidity
values will prevail below 50 percent, accompanied by light winds
and drying fine fuels.

&&

.MEG WATCHES/WARNINGS/ADVISORIES...
AR...Heat Advisory from 11 AM to 7 PM CDT Friday for ARZ009-018-
     026>028-035-036-048-049-058.

MO...Heat Advisory from 11 AM to 7 PM CDT Friday for MOZ113-115.

MS...Heat Advisory from 11 AM to 7 PM CDT Friday for MSZ001-007-008-
     010>012-020-021.

TN...Heat Advisory from 11 AM to 7 PM CDT Friday for TNZ001-002-019-
     048-049-088.

&&

$$

PUBLIC FORECAST...CMA
AVIATION...PWB
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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