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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: 10:12 pm CDT Aug 10, 2025 |
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Tonight
Mostly Clear
then Chance
T-storms
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Monday
T-storms
Likely
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Monday
Night
Chance
T-storms
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Tuesday
T-storms
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Tuesday
Night
T-storms
Likely then
Chance
T-storms
|
Wednesday
Showers then
T-storms
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Wednesday
Night
T-storms
Likely then
Partly Cloudy
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Thursday
T-storms
Likely
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Thursday
Night
Mostly Clear
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| Lo 82 °F |
Hi 90 °F |
Lo 79 °F |
Hi 88 °F |
Lo 78 °F |
Hi 90 °F |
Lo 79 °F |
Hi 91 °F |
Lo 79 °F |
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Tonight
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A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly clear, with a steady temperature around 82. East wind around 5 mph. |
Monday
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Showers and thunderstorms likely, mainly between 11am and 3pm. Partly sunny, with a high near 90. Northeast wind 5 to 10 mph becoming east in the afternoon. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. |
Monday Night
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A 40 percent chance of showers and thunderstorms, mainly after 4am. Partly cloudy, with a low around 79. Southeast wind around 5 mph becoming calm in the evening. |
Tuesday
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Showers and thunderstorms, mainly before 4pm, then showers and possibly a thunderstorm after 4pm. High near 88. Calm wind becoming southeast around 5 mph in the morning. Chance of precipitation is 80%. |
Tuesday Night
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Showers and thunderstorms likely, mainly before 7pm. Partly cloudy, with a low around 78. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. |
Wednesday
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Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 90. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 80%. |
Wednesday Night
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Thunderstorms likely before 7pm. Partly cloudy, with a low around 79. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. |
Thursday
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Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 91. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%. |
Thursday Night
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Mostly clear, with a low around 79. South wind around 5 mph becoming calm after midnight. |
Friday
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A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Calm wind becoming west around 5 mph in the afternoon. |
Friday Night
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Partly cloudy, with a low around 80. South wind around 5 mph becoming calm in the evening. |
Saturday
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A chance of showers and thunderstorms. Sunny, with a high near 93. Calm wind becoming northwest around 5 mph. |
Saturday Night
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Mostly clear, with a low around 80. South wind around 5 mph becoming calm. |
Sunday
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A chance of showers and thunderstorms. Mostly sunny, with a high near 93. North wind around 5 mph becoming northeast in the afternoon. |
Forecast from NOAA-NWS
for Chalmette LA.
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Weather Forecast Discussion
148
FXUS64 KLIX 102339 AAA
AFDLIX
Area Forecast Discussion...UPDATED
National Weather Service New Orleans LA
639 PM CDT Sun Aug 10 2025
...NEW AVIATION...
.SHORT TERM...
(This evening through Monday night)
Issued at 1220 PM CDT Sun Aug 10 2025
Locally our PW has rebounded to just over 2", as expected. We are
seeing some convection building just onshore especially in
Terrebonne and Lafourche parishes. As the day progresses, we
expect to see a light increase in PW and a bit of upper level low
pressure weakness build into the area. Winds in the lower levels
are generally easterly with predominantly southerly winds in the
mid/upper levels. All this, combined with daytime heating, pushes
PoPs into the 50% range in the southern half of the CWA. So, we
can expect the convection to continue building to the south
through this evening. In the northern half of the CWA we are
looking at 30% PoPs which will give us a more "normal" summertime
feel. In either case, the high temps this afternoon will run
around 90-93 range, on the lower end if you have clouds and rain
and upper side with more sun. Tomorrow, we expect a slight
increase in PoPs and a more southeasterly low level wind bringing
higher rain chances (PoPs 50- 70%) across the area. Temps will
remain in the low 90s.
&&
.LONG TERM...
(Tuesday through Saturday night)
Issued at 1220 PM CDT Sun Aug 10 2025
Northerly low dips down and tropical low pressure pushes out of the
Caribbean and into the north central Gulf. With this combination of
features, rain chances build to 70-80% on Tuesday and Wednesday.
High pressure pushes in beginning Thursday and into the weekend
bringing us back to our typical summertime weather pattern, with 30-
50% PoPs daytime highs pushing toward the mid-90s.
&&
.AVIATION...
(00Z TAFS)
Issued at 639 PM CDT Sun Aug 10 2025
Outside of some isolated showers and maybe a storm or two for ASD
and HDC, VFR conditions should continue overnight tonight and into
Monday. By afternoon showers and thunderstorms will again start to
develop. Coverage (as we have seen today) is still in question, so
mostly kept PROBs going through the afternoon (and early evening
for MSY). If coverage does appear to increase on Monday, this may
be nudged a bit to represent that. Otherwise, outside of brief
VIS/CIG reductions within convection VFR should prevail with
generally light winds below 10kts. (Frye)
&&
.MARINE...
Issued at 1220 PM CDT Sun Aug 10 2025
Winds and waves will remain mostly calm through the forecast period,
with winds staying below 15kts each day. The only marine concerns
through the forecast period are convection driven winds and waves
that will be locally higher around any thunderstorms that
develop. The early morning hours have the best chances of marine
convection each day with some storms on the stronger side bringing
higher winds and seas. Convective coverage is expected to
increase through Wednesday.
&&
.PRELIMINARY POINT TEMPS/POPS...
MCB 73 91 73 88 / 10 50 20 80
BTR 75 92 75 90 / 20 70 20 80
ASD 74 90 73 88 / 30 70 40 80
MSY 80 91 79 89 / 30 70 30 80
GPT 75 89 76 87 / 40 70 50 80
PQL 74 89 74 88 / 30 70 60 80
&&
.LIX WATCHES/WARNINGS/ADVISORIES...
LA...None.
GM...None.
MS...None.
GM...None.
&&
$$
SHORT TERM...DS
LONG TERM....DS
AVIATION...RDF
MARINE...DS
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