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Opelousas, Louisianna 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Opelousas LA
National Weather Service Forecast for: Opelousas LA
Issued by: National Weather Service Lake Charles, LA
Updated: 1:46 am CDT Jul 9, 2025
 
Today

Today: A slight chance of showers, then showers and thunderstorms likely after 10am.  Increasing clouds, with a high near 92. Heat index values as high as 100. Calm wind becoming southwest around 5 mph in the afternoon.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Chance
T-storms then
T-storms
Likely
Tonight

Tonight: A 20 percent chance of showers and thunderstorms before 10pm.  Partly cloudy, with a low around 74. Southwest wind around 5 mph becoming calm  in the evening.
Slight Chance
T-storms then
Mostly Clear
Thursday

Thursday: A chance of showers, then showers and thunderstorms likely after 10am.  Mostly sunny, with a high near 93. Heat index values as high as 100. Calm wind becoming southwest around 5 mph in the morning.  Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms then
T-storms
Likely
Thursday
Night
Thursday Night: Partly cloudy, with a low around 75. Southwest wind around 5 mph becoming calm  in the evening.
Partly Cloudy

Friday

Friday: A slight chance of showers, then a chance of showers and thunderstorms after 10am.  Mostly sunny, with a high near 93. Calm wind becoming south around 5 mph in the morning.  Chance of precipitation is 50%.
Slight Chance
T-storms then
Chance
T-storms
Friday
Night
Friday Night: Partly cloudy, with a low around 75. South wind around 5 mph becoming calm  in the evening.
Partly Cloudy

Saturday

Saturday: Showers and thunderstorms likely, mainly after 1pm.  Mostly sunny, with a high near 93. Calm wind becoming south around 5 mph in the afternoon.  Chance of precipitation is 60%.
Chance
T-storms then
T-storms
Likely
Saturday
Night
Saturday Night: Partly cloudy, with a low around 76. South wind around 5 mph becoming calm  in the evening.
Partly Cloudy

Sunday

Sunday: Showers and thunderstorms likely, mainly after 1pm.  Mostly sunny, with a high near 94. Calm wind becoming southwest around 5 mph in the afternoon.  Chance of precipitation is 60%.
Chance
T-storms then
T-storms
Likely
Hi 92 °F Lo 74 °F Hi 93 °F Lo 75 °F Hi 93 °F Lo 75 °F Hi 93 °F Lo 76 °F Hi 94 °F

 

Today
 
A slight chance of showers, then showers and thunderstorms likely after 10am. Increasing clouds, with a high near 92. Heat index values as high as 100. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
 
A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 74. Southwest wind around 5 mph becoming calm in the evening.
Thursday
 
A chance of showers, then showers and thunderstorms likely after 10am. Mostly sunny, with a high near 93. Heat index values as high as 100. Calm wind becoming southwest around 5 mph in the morning. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
 
Partly cloudy, with a low around 75. Southwest wind around 5 mph becoming calm in the evening.
Friday
 
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 93. Calm wind becoming south around 5 mph in the morning. Chance of precipitation is 50%.
Friday Night
 
Partly cloudy, with a low around 75. South wind around 5 mph becoming calm in the evening.
Saturday
 
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 93. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 60%.
Saturday Night
 
Partly cloudy, with a low around 76. South wind around 5 mph becoming calm in the evening.
Sunday
 
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 94. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%.
Sunday Night
 
Mostly clear, with a low around 76.
Monday
 
A 50 percent chance of showers and thunderstorms. Sunny, with a high near 95.
Monday Night
 
Mostly clear, with a low around 77.
Tuesday
 
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96.

 

Forecast from NOAA-NWS for Opelousas LA.

Weather Forecast Discussion
131
FXUS64 KLCH 090529
AFDLCH

Area Forecast Discussion
National Weather Service Lake Charles LA
1229 AM CDT Wed Jul 9 2025

...New SHORT TERM, LONG TERM, AVIATION, MARINE, FIRE WEATHER...

.KEY MESSAGES...

-An upper level low and deep moisture will support increased
 diurnal convection through Wednesday with some locally
 torrential downpours possible.

-The upper level low will weaken on Thursday as it moves into
 Texas. A Saharan Air Layer moving across may help to decrease
 convection somewhat late in the week.

-Flat upper level ridge does not strengthen until early next week,
 therefore typical summertime pattern is expected over the weekend.

&&

.SHORT TERM...
(Today through Friday night)
Issued at 1224 AM CDT Wed Jul 9 2025

An upper ridge is centered over northwest Mexico and the SW
states while a another ridge is centered east of the Outer Banks of
NC. An upper low is over the northwest gulf. This puts LA and far SE
TX roughly in the col area between these features. Moisture levels
between the aforementioned mid to upper lvl features is running high
at 1.8" to 1.9" of PWAT across the local area which is roughly the
75th percentile for the date. At the surface, the subtropical ridge
extends from the Atlantic and across the northern gulf coast and is
providing a general south to southwest flow across LA and SE TX.
These features will remain in place into Wednesday. The light flow,
lack of a ridge directly overhead, and pooling of moisture between
the ridges and upper low will allow for scattered to numerous storms
by Wednesday afternoon after a morning of nocturnal showers and
storms along the coast. Storm motion will be fairly slow and there
is the potential for heavy rainfall with the soupy airmass in place.
Otherwise, temperatures will be about typical for early to mid July.

A weakness aloft remains in place into Thursday and Friday with
scattered diurnal convection once again possible each day. A
slightly warm mid lvl layer associate with the SAL may decrease
rain chances somewhat from Wednesday.

&&

.LONG TERM...
(Saturday through Wednesday)
Issued at 1224 AM CDT Wed Jul 9 2025

The region will remain under a weakness aloft for the weekend which
is expected to allow scattered afternoon storm and the typical
summertime temperatures. However, by early next week a ridge aloft
will begin to build in from the east. This may decrease rain chances
and increase temperatures 2 or 3 degrees.

&&

.AVIATION...
(06Z TAFS)
Issued at 1224 AM CDT Wed Jul 9 2025

Thin br may occur toward sunrise at terminals that received rain
late Tuesday, and scattered thunderstorms are again anticipated
Wednesday afternoon, however the period will mostly be VFR. Lower
vis and ceilings will be possible in showers and storms. Winds
will be light and generally south to southwest.

&&

.MARINE...
Issued at 1224 AM CDT Wed Jul 9 2025

Weak ridging will remain over the northern gulf coast through the
period. A light onshore flow is expected, however thunderstorms will
be possible through the remainder of the week and into the weekend
as a weakness aloft lingers over the region. Winds and seas may be
higher near storms.


&&

.FIRE WEATHER...
Issued at 1224 AM CDT Wed Jul 9 2025

Scattered diurnal thunderstorms can  be anticipated each day through
the rest of the week and into the weekend. Moisture levels will
remain typically high and temperatures will remain in line with
climate averages through Sunday.

Southerly low level flow to continue through the end of the week.
This will allow a moist air mass to persist with minimum afternoon
relative humidity values above 60 percent. A relative weakness
aloft will keep a daily chance for showers and thunderstorms in
the forecast.

&&

.PRELIMINARY POINT TEMPS/POPS...
AEX  91  72  93  73 /  60  30  60  10
LCH  90  76  92  77 /  60  20  60  10
LFT  90  75  91  75 /  70  20  70  10
BPT  90  75  91  75 /  60  20  50  10

&&

.LCH WATCHES/WARNINGS/ADVISORIES...
LA...None.
TX...None.
GM...None.
&&

$$

SHORT TERM...05
LONG TERM....05
AVIATION...05
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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