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New Iberia, Louisianna 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for New Iberia LA
National Weather Service Forecast for: New Iberia LA
Issued by: National Weather Service Lake Charles, LA
Updated: 7:45 pm CDT Jul 25, 2025
 
Tonight

Tonight: A 40 percent chance of showers and thunderstorms, mainly after 2am.  Partly cloudy, with a low around 76. Southeast wind 5 to 10 mph.
Chance
T-storms

Saturday

Saturday: Showers and thunderstorms likely, mainly before 4pm. Some of the storms could produce heavy rainfall.  Partly sunny, with a high near 90. Heat index values as high as 100. South wind 5 to 10 mph.  Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
Heavy Rain

Saturday
Night
Saturday Night: A 30 percent chance of showers and thunderstorms before 7pm.  Mostly cloudy, with a low around 76. South wind around 5 mph becoming calm  in the evening.
Chance
T-storms then
Partly Cloudy
Sunday

Sunday: Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm.  Mostly sunny, with a high near 93. Heat index values as high as 103. East wind around 5 mph becoming south in the afternoon.  Chance of precipitation is 60%.
Chance
T-storms then
T-storms
Likely
Sunday
Night
Sunday Night: A chance of thunderstorms before 7pm.  Mostly clear, with a low around 74. South wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 30%.
Chance
T-storms then
Mostly Clear
Monday

Monday: Sunny, with a high near 95. Calm wind becoming north around 5 mph.
Sunny

Monday
Night
Monday Night: Mostly clear, with a low around 77. Calm wind becoming northwest around 5 mph after midnight.
Mostly Clear

Tuesday

Tuesday: Sunny and hot, with a high near 97. Northwest wind around 5 mph.
Hot

Tuesday
Night
Tuesday Night: A 20 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 77. West wind around 5 mph becoming calm.
Partly Cloudy
then Slight
Chance
T-storms
Lo 76 °F Hi 90 °F Lo 76 °F Hi 93 °F Lo 74 °F Hi 95 °F Lo 77 °F Hi 97 °F Lo 77 °F

 

Tonight
 
A 40 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 76. Southeast wind 5 to 10 mph.
Saturday
 
Showers and thunderstorms likely, mainly before 4pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 90. Heat index values as high as 100. South wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
Saturday Night
 
A 30 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 76. South wind around 5 mph becoming calm in the evening.
Sunday
 
Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly sunny, with a high near 93. Heat index values as high as 103. East wind around 5 mph becoming south in the afternoon. Chance of precipitation is 60%.
Sunday Night
 
A chance of thunderstorms before 7pm. Mostly clear, with a low around 74. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Monday
 
Sunny, with a high near 95. Calm wind becoming north around 5 mph.
Monday Night
 
Mostly clear, with a low around 77. Calm wind becoming northwest around 5 mph after midnight.
Tuesday
 
Sunny and hot, with a high near 97. Northwest wind around 5 mph.
Tuesday Night
 
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 77. West wind around 5 mph becoming calm.
Wednesday
 
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 96.
Wednesday Night
 
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Thursday
 
Showers and thunderstorms likely. Mostly sunny, with a high near 92. Chance of precipitation is 70%.
Thursday Night
 
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76.
Friday
 
Showers and thunderstorms likely. Partly sunny, with a high near 91. Chance of precipitation is 70%.

 

Forecast from NOAA-NWS for New Iberia LA.

Weather Forecast Discussion
004
FXUS64 KLCH 252344
AFDLCH

Area Forecast Discussion
National Weather Service Lake Charles LA
644 PM CDT Fri Jul 25 2025

...New AVIATION...

.KEY MESSAGES...

- Widespread showers and thunderstorms with torrential rainfall,
  frequent lightning and gusty winds expected from this afternoon
  to Saturday.

- Marginal risk of excessive rain for portions of the area today
  and Saturday. Expect highest totals along and south of I-10
  today through Saturday.

- Another heat wave develops rapidly Monday into Wednesday of next
  week.

&&

.SHORT TERM...
(Tonight through Sunday night)
Issued at 1203 PM CDT Fri Jul 25 2025

Our main feature remains an unorganized tropical wave located in
the central Gulf. This system will continue to impact our area
with several rounds of showers and thunderstorms. Rainfall rates
will be high with these systems and can quickly drop several
inches of rain in short time frames. Built-up areas with poor
drainage will be the most vulnerable to flash flooding, and we
have a Marginal Risk (level 1 of 4) across the region today and
Saturday. Some of the thunderstorms could be on the stronger side,
with RAP forecast CAPE values expected between 2000 - 3000 J/kg
today and 1500 - 2000 J/kg on Saturday. Frequent lightning and
gusty winds will be possible with these thunderstorms. However,
flash flooding remains the main concern for today and Saturday.

Areas along and south of I-10 are more likely to see heavy rain
and thunderstorms with gusty winds, but areas north of the I-10
corridor could still see impacts.

By Sunday, the remnants of the wave will be in central Texas, and
high pressure will start to build again over the region. Before
the ridge is able to suppress convection, the forecast will
support typical summertime popup showers and thunderstorms through
the afternoon and into the evening.

&&

.LONG TERM...
(Monday through next Thursday)
Issued at 1203 PM CDT Fri Jul 25 2025

We will start the workweek hot and humid as yet another heat wave
sets up across the region. Surface high pressure will be settled
into the eastern Gulf, pushing warm, moist tropical air north and
driving our dew points into the mid to upper 70s. Aloft, a strong
ridge will be building overhead with 500 mb heights expected to be
above 597 dm. Both the ECMWF and GFS ensemble probabilities put
the likelihood of reaching 579 dm at the 500 mb heights near 100%
on Monday, with ensemble tables highlighting the strength of this
ridge with heights above the 99th percentile compared to our
climatological norms. What this means is that even in the heart of
summer, temperatures will be dangerously hot. Temperatures on
Monday will be in the low to mid-90s with heat index values near
the 108 threshold. By Tuesday and Wednesday, temperatures will
increase to the mid to upper 90s, and heat advisories should be
expected. For central Louisiana and Texas, we cant rule out
triple-digit highs with the NBM probabilities near 50%. The good
news is this ridge wont be stuck overhead and will be sliding to
the west, with the center of the ridge moving into central Texas
by midweek. Still, this will be a dangerous situation as the heat
will quickly build and heat precautions will be needed for people
and pets next week.

As the ridge shifts westward, rain chances will increase from
east to west starting Tuesday, but decent rain chances really
enter the forecast on Wednesday. For the second half of the week,
an increase in cloud coverage will help moderate temperatures, but
unfortunately, highs will still be in the 90s with heat index
values in the triple digits.

Later in the week, models have been consistent with forming a
broad area of low pressure in the northern Gulf. The moisture from
this system will bring another round of widespread showers and
thunderstorms, and it will be a feature to keep an eye on.

&&

.AVIATION...
(00Z TAFS)
Issued at 644 PM CDT Fri Jul 25 2025


Daytime convection has generally come to a close. A few isolated
showers are still ongoing near Lower Acadiana and vicinity showers
will be possible area wide during overnight hours. Scattered to
numerous convection is expected once again during daytime hours,
although timeframe is still somewhat nebulous. Prevailing TS/TSRA
periods should be coming with later TAF issuances once timing is
better nailed down.

Cloud decks will remain rather low overnight in response to nearby
tropical wave. Expect lower cloud decks in daytime hours and near
to thunderstorms.

Winds should prevail from the southwest for much of the period and
could be gusty at times as tropical wave and sfc low begin phasing
in the northwest Gulf overnight.

11/Calhoun

&&

.MARINE...
Issued at 1203 PM CDT Fri Jul 25 2025

A small craft advisory will be in effect tonight due to sustained
winds up to 25 knots from the south with gusts up to 30 knots.
Widespread showers and thunderstorms will also impact our coastal
waters through the weekend, bringing even higher gusts, frequent
lightning, and heavy downpours. Winds and waves will peak tonight
as a tropical wave moves across the central Gulf. Background
maximum wave heights up to 6 feet are possible with south winds up
to 25 knots.

By Saturday morning, the tropical wave will be in the western Gulf
and will head into inland Texas. Conditions will rapidly improve,
with waves dropping below 3 feet and winds dropping below 10
knots. For the rest of the weekend and the first half of the week,
high pressure will lead to calm conditions.

&&

.FIRE WEATHER...
Issued at 1203 PM CDT Fri Jul 25 2025

Humid and warm weather will continue, with minimum RH levels
between 50% and 60% through Monday. Widespread showers and
thunderstorms will bring heavy rain tonight and Saturday, with
gusty winds and lightning.

&&

.PRELIMINARY POINT TEMPS/POPS...
AEX  74  92  73  96 /  20  60   0  30
LCH  77  89  77  92 /  60  70  10  60
LFT  76  89  76  92 /  40  70  10  60
BPT  76  89  77  92 /  60  70  10  70

&&

.LCH WATCHES/WARNINGS/ADVISORIES...
LA...None.
TX...None.
GM...Small Craft Advisory until 7 AM CDT Saturday for GMZ432-435-436-
     452-455-472-475.

&&

$$

SHORT TERM...14
LONG TERM....14
AVIATION...11
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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