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McComb, Mississippi 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Mc Comb MS
National Weather Service Forecast for: Mc Comb MS
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Updated: 12:41 pm CDT Jul 11, 2025
 
This
Afternoon
This Afternoon: Showers and thunderstorms likely.  Partly sunny, with a steady temperature around 89. Southwest wind around 5 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
T-storms
Likely
Tonight

Tonight: A 30 percent chance of showers and thunderstorms, mainly before 8pm.  Partly cloudy, with a low around 71. Southwest wind around 5 mph becoming calm.
Chance
T-storms then
Mostly Clear
Saturday

Saturday: A 40 percent chance of showers and thunderstorms, mainly after 2pm.  Sunny, with a high near 94. Calm wind becoming southwest around 5 mph in the afternoon.
Sunny then
Chance
T-storms
Saturday
Night
Saturday Night: A 10 percent chance of showers and thunderstorms before 7pm.  Mostly clear, with a low around 72. South wind around 5 mph becoming calm.
Slight Chance
T-storms then
Clear
Sunday

Sunday: A 40 percent chance of showers and thunderstorms after 1pm.  Sunny and hot, with a high near 95. Calm wind becoming south around 5 mph in the afternoon.
Sunny then
Chance
T-storms
Sunday
Night
Sunday Night: Mostly clear, with a low around 73. South wind around 5 mph becoming calm.
Mostly Clear

Monday

Monday: A 40 percent chance of showers and thunderstorms after 1pm.  Sunny and hot, with a high near 96. Calm wind becoming west around 5 mph.
Sunny then
Chance
T-storms
Monday
Night
Monday Night: Mostly clear, with a low around 72. Calm wind.
Mostly Clear

Tuesday

Tuesday: A chance of showers and thunderstorms after 1pm.  Sunny and hot, with a high near 96. Calm wind becoming northwest around 5 mph.
Sunny then
Chance
T-storms
Hi 89 °F Lo 71 °F Hi 94 °F Lo 72 °F Hi 95 °F Lo 73 °F Hi 96 °F Lo 72 °F Hi 96 °F

 

This Afternoon
 
Showers and thunderstorms likely. Partly sunny, with a steady temperature around 89. Southwest wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
 
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 71. Southwest wind around 5 mph becoming calm.
Saturday
 
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Sunny, with a high near 94. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
 
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 72. South wind around 5 mph becoming calm.
Sunday
 
A 40 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 95. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
 
Mostly clear, with a low around 73. South wind around 5 mph becoming calm.
Monday
 
A 40 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 96. Calm wind becoming west around 5 mph.
Monday Night
 
Mostly clear, with a low around 72. Calm wind.
Tuesday
 
A chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 96. Calm wind becoming northwest around 5 mph.
Tuesday Night
 
Mostly clear, with a low around 73. Calm wind.
Wednesday
 
A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 97. Calm wind becoming north around 5 mph.
Wednesday Night
 
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 74. Calm wind.
Thursday
 
Showers and thunderstorms likely. Mostly sunny and hot, with a high near 96. Calm wind becoming northeast around 5 mph.
Thursday Night
 
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Southeast wind around 5 mph becoming calm.
Friday
 
Showers and thunderstorms likely. Partly sunny, with a high near 94. Calm wind becoming southwest around 5 mph in the afternoon.

 

Forecast from NOAA-NWS for Mc Comb MS.

Weather Forecast Discussion
849
FXUS64 KLIX 111949
AFDLIX

Area Forecast Discussion
National Weather Service New Orleans LA
249 PM CDT Fri Jul 11 2025

...NEW SHORT TERM, LONG TERM, MARINE...

.SHORT TERM...
(This evening through Saturday night)
Issued at 250 PM CDT Fri Jul 11 2025

A few afternoon storms have developed across parts of the CWFA at
the time of this discussion. As of now, the higher concentration
of convection is across the southshore or along and south of the
I10 corridor. Coverage is mostly widely scattered, less than days
past as an upper level ridge continues to retrograde into the
region. Shower and storm activity should come to an end around or
shortly after sunset. Overnight the main concern will be the
potential for fog over the southwest MS Counties.

Saturday looks to be a skosh warmer than today as the ridge
continues to build further over the region. The ridge will help
limit but not fully stop convection from developing. The best
potential will be west of the Lakes/I55 corridor closer to a
decaying H5 shear axis over northwestern portions of the state.
(Frye)

&&

.LONG TERM...
(Sunday through Thursday night)
Issued at 250 PM CDT Fri Jul 11 2025

Going into the second half of the weekend rain chances are not
zero, but they are not as high as climo POPs, again with the
upper ridge sitting over our region. There may be a weak impulse
at H5 that if timed with the daily sea/lake breeze could ignite a
bit more convection than currently advertised, so that`s something
to watch.

Going into the start of the new workweek, temperatures are going
to go from hot to potentially dangerous with heat index values
approaching headline criteria if not Sunday most certainly Monday
and beyond with some heat index values exceeding 110F on Tuesday.
This would likely be an areawide heat advisory PLUS situation
basically for all of next week. There will be chances of showers
and thunderstorms during the afternoon hours. However, the rain
chances will need to be watched mid to late week next week as an
easterly wave begins to slide under the H5 ridge that by then will
be sitting over the Nashville Basin. The finer details are a bit
fuzzy with most models not really agreeing on placement and
strength. However, the steering currents will weaken a good bit,
which may be the first signal for a potential hydro event setting
up, especially if the GFS and CMC are correct. Nothing set in
stone, but something to monitor as we sweat out the next few days.
(Frye)

&&

.AVIATION...
(18Z TAFS)
Issued at 1129 AM CDT Fri Jul 11 2025

Convection remains possible this afternoon. Covered the potential
for lower VIS/CIGs with PROB/TEMPOs. Outside of convection mostly
VFR conditions with light winds expected through the cycle. MCB
once again may develop some lower VIS conditions overnight. CIGs
will lift after sunrise on Saturday. (Frye)

&&

.MARINE...
Issued at 250 PM CDT Fri Jul 11 2025

High pressure will set up over the local waters through much of
the forecast period. This will keep winds light and variable.
Overall favorable marine conditions expected. That said, there
could still be diurnally driven convection, especially during the
late night and morning hours. In and around convection expect
locally higher winds and seas at least briefly. (Frye)

&&

.PRELIMINARY POINT TEMPS/POPS...
MCB  71  93  72  94 /  30  40  10  40
BTR  74  93  74  93 /  10  50  10  50
ASD  73  93  74  93 /  20  40   0  40
MSY  78  94  78  93 /  20  40  10  50
GPT  75  92  76  93 /  30  40  10  40
PQL  73  93  74  93 /  40  40  10  40

&&

.LIX WATCHES/WARNINGS/ADVISORIES...
LA...None.
GM...None.
MS...None.
GM...None.
&&

$$

SHORT TERM...RDF
LONG TERM....RDF
AVIATION...RDF
MARINE...RDF
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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