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Chalmette, Louisianna 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
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NWS Forecast for Chalmette LA
National Weather Service Forecast for:
Chalmette LA
Issued by: National Weather Service New Orleans/Baton Rouge, LA |
| Updated: 11:11 pm CDT Jul 12, 2025 |
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Tonight
Mostly Clear
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Sunday
Slight Chance
T-storms then
Chance
T-storms
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Sunday
Night
Mostly Clear
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Monday
Chance
T-storms then
T-storms
Likely
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Monday
Night
Chance
T-storms then
Mostly Clear
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Tuesday
Chance
T-storms
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Tuesday
Night
Mostly Clear
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Wednesday
T-storms
Likely
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Wednesday
Night
Chance
T-storms
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| Lo 78 °F |
Hi 91 °F |
Lo 78 °F |
Hi 92 °F |
Lo 79 °F |
Hi 94 °F |
Lo 80 °F |
Hi 93 °F |
Lo 79 °F |
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Tonight
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Mostly clear, with a low around 78. South wind around 5 mph becoming calm. |
Sunday
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A 50 percent chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 91. Calm wind becoming east around 5 mph in the afternoon. New rainfall amounts between a quarter and half of an inch possible. |
Sunday Night
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Mostly clear, with a low around 78. South wind around 5 mph becoming calm in the evening. |
Monday
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Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly sunny, with a high near 92. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 70%. |
Monday Night
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A chance of thunderstorms before 7pm. Mostly clear, with a low around 79. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. |
Tuesday
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A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94. Northwest wind around 5 mph. |
Tuesday Night
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Mostly clear, with a low around 80. West wind around 5 mph becoming calm. |
Wednesday
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Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 93. Northwest wind around 5 mph becoming east in the afternoon. Chance of precipitation is 60%. |
Wednesday Night
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A chance of showers and thunderstorms. Mostly cloudy, with a low around 79. South wind around 5 mph becoming calm in the evening. |
Thursday
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Showers likely and possibly a thunderstorm, then showers and thunderstorms after 1pm. Partly sunny, with a high near 90. North wind around 5 mph becoming east in the afternoon. |
Thursday Night
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A chance of showers and thunderstorms. Mostly cloudy, with a low around 78. East wind around 5 mph becoming southwest after midnight. |
Friday
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Showers and thunderstorms. Partly sunny, with a high near 90. North wind 5 to 10 mph becoming south in the afternoon. |
Friday Night
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A chance of showers and thunderstorms. Mostly cloudy, with a low around 79. South wind around 5 mph. |
Saturday
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Showers and thunderstorms. Partly sunny, with a high near 90. Southwest wind around 5 mph. |
Forecast from NOAA-NWS
for Chalmette LA.
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Weather Forecast Discussion
230
FXUS64 KLIX 122024
AFDLIX
Area Forecast Discussion
National Weather Service New Orleans LA
324 PM CDT Sat Jul 12 2025
...New SHORT TERM, LONG TERM, AVIATION, MARINE...
.SHORT TERM...
(This evening through Sunday night)
Issued at 323 PM CDT Sat Jul 12 2025
Latest upper level analysis shows a ridge centerd over the Gulf,
another one near southern California and a trough across the north-
central US. The CWA is on the northwestern periperhy of the ridge, a
region of some subisdence but not a lot and certainly not enough to
inhibit summertime convection. As such, scattered showers and storms
have developed and will persist through the afternoon hours before
dissipating with daytime heating. Radar presentation over the last
few hours reflects what to expect this time of year with pop up
thunderstorms that weaken rather quickly once reaching mature stage.
Only the few most intense storms will present any apprecible threat
of damaging winds and frequent lightning.
A weak shortwave within the base of the trough will slightly weaken
the upper ridge nearby. This will allow for increased coverage of
storms on Sunday with those rain chances rising inot the 60 to 80%
range for western portoins of the CWA.
MEFFER
&&
.LONG TERM...
(Monday through Friday night)
Issued at 323 PM CDT Sat Jul 12 2025
The upper trough looks to progress east and lift northward starting
next week. This will allow the ridge nearby to spread back north
across the northern Gulf Coast. That will put us back into less
daytime convection and warmer temps. With forecast highs solidly in
the mid 90s Monday and Tuesday along with dewpoints in the mid to
upper 70s, it`s pretty much a given that a heat advisory will be
needed for those 2 days. It`s possible that this will carry over
into Wednesday but increasing rainfall coverage as we transition
from heat to wet.
Models show that the increasing mid week convective coverage will be
coming from the east as an inverted trough. It looks like quite deep
tropical moisture will a large envelope of 2.5"+ PW which is well
above the 90th percentile and actually right near peak values for
this time of year. Way to soon to determine if it`ll attain tropical
characteristics. Regardless, the local area would be in a fairly wet
pattern for a few to several days. Will need to monitor this one.
MEFFER
&&
.AVIATION...
(18Z TAFS)
Issued at 323 PM CDT Sat Jul 12 2025
VFR outside TSRA through this cycle. Main impacts will be short term
gusty winds and rainfall. TSRA will dissipate with loss of daytime
heating and then return with possibly greater coverage tomorrow. Did
add some PROB30 groups for those terminals.
&&
.MARINE...
Issued at 323 PM CDT Sat Jul 12 2025
Quiet marine conditions will continue through the next few days as
high pressure remains overhead or at least nearby. Winds generally
onshore at 10 knots or less with seas under 2 feet. The only
exception would be brief gale force wind gusts from isolated storms.
A broad area of low pressure moving into the northeaster Gulf middle
of next week my induce offshore flow in coastal waters east of the
Mouth of the Mississippi River.
MEFFER
&&
.PRELIMINARY POINT TEMPS/POPS...
MCB 72 93 72 94 / 20 30 0 40
BTR 74 92 74 93 / 10 60 0 50
ASD 73 93 73 94 / 10 40 0 40
MSY 77 93 78 94 / 10 60 0 60
GPT 76 92 76 94 / 10 40 10 40
PQL 73 93 73 95 / 10 30 10 40
&&
.LIX WATCHES/WARNINGS/ADVISORIES...
LA...None.
GM...None.
MS...None.
GM...None.
&&
$$
SHORT TERM...ME
LONG TERM....ME
AVIATION...ME
MARINE...ME
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