Weather in Belle Chasse

14-day forecast · updated today, Wednesday, October 28, at 6:04 pm (CDT)

Now · mainly clear 74 °F

Feels like: 71 °F
Low / high: 59 / 81 °F
Rain: 0%
Wind: 4 mph ENE

→ 30.14 inHg · steady

Today in Belle Chasse: mainly clear, 59 °F to 81 °F, with a 0% chance of rain and a light breeze from the east-northeast (4 mph). Tomorrow, overcast, 55 °F to 79 °F and a 0% chance of rain. The warmest day of the week is Wednesday 28, at 81 °F. Next likely rain: Saturday 31 (56%).

Temperatures for the next 14 days

81° 59°
Today
79° 55°
Thu 29
78° 65°
Fri 30
79° 68°
Sat 31
78° 68°
Sun 1
78° 67°
Mon 2
78° 67°
Tue 3
76° 64°
Wed 4
73° 60°
Thu 5
72° 57°
Fri 6
72° 56°
Sat 7
72° 56°
Sun 8
70° 53°
Mon 9
73° 55°
Tue 10

Day by day

Day	Sky	Low / high	Rain	Max wind	High tides	Model
Today · 28	Mainly clear	59 / 81 °F	0%	9 mph NE	3:17 am	HRRR
Thu 29	Overcast	55 / 79 °F	0%	10 mph NE	3:55 am	HRRR + NBM
Fri 30	Light drizzle	65 / 78 °F	2%	15 mph ENE	4:39 am	NBM
Sat 31	Light drizzle	68 / 79 °F	56% · 0.13 in	13 mph E	6:10 am	NBM
Sun 1	Light drizzle	68 / 78 °F	37% · 0.18 in	10 mph ENE	6:20 am	NBM
Mon 2	Light drizzle	67 / 78 °F	6%	13 mph E	6:48 am	NBM
Tue 3	Light drizzle	67 / 78 °F	29% · 0.15 in	17 mph SE	10:51 am	NBM
Wed 4	Light showers	64 / 76 °F	36% · 0.53 in	15 mph S	12:00 pm	NBM
Thu 5	Light rain	60 / 73 °F	14% · 0.00 in	12 mph W	2:33 am · 3:00 pm	NBM
Fri 6	Overcast	57 / 72 °F	6% · 0.02 in	10 mph NW	12:47 am	NBM
Sat 7	Overcast	56 / 72 °F	3%	9 mph ENE	12:41 am	NBM
Sun 8	Overcast	56 / 72 °F	10% · 0.02 in	8 mph NE	12:21 am	NBM + ECMWF
Mon 9	Overcast	53 / 70 °F	10%	6 mph NNE	12:16 am	ECMWF
Tue 10	Mainly clear	55 / 73 °F	12%	4 mph N	12:47 am	ECMWF

Each hour comes from the best model for this spot: HRRR until Thursday 29 1:00 pm; then NBM until Sunday 8 1:00 pm; then ECMWF until Thursday 12 9:00 am; then GFS.

Each day comes from the best model covering this spot: regional ones first (HRRR and NBM in the U.S., AROME, ICON-EU), then ECMWF; day 16, NOAA GFS. Waves: Météo-France up to day 10, then ECMWF WAM, coarser and further offshore. High tides: our own tide calculation.

Today, every 3 hours

Time	12:00 am	3:00 am	6:00 am	9:00 am	12:00 pm	3:00 pm	6:00 pm	9:00 pm
Sky	Mainly clear	Clear	Mainly clear	Clear sky	Clear sky	Clear sky	Mainly clear	Mainly clear
Temperature	61°	59°	62°	68°	79°	81°	74°	65°
Chance of rain	0%	0%	0%	0%	0%	0%	0%	0%
Rain	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in
Wind (mph)	2 N	2 NNE	3 NE	6 NE	8 NE	9 NE	4 ENE	3 ESE
Humidity	86%	94%	97%	81%	45%	29%	35%	61%
UV	0	0	0	1	6	3	0	0
Model	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR

Do the models agree?

Medium confidence

They broadly agree, but not quite on rain on Saturday 31: take it with some caution.

What 6 forecast models say for the next few days. The closer they are, the more reliable the forecast.

HighRainWind

Do the models agree? · High
High (°F)	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	78°	78°	78°	81°	78°	79°	81°
AIFS	77°	77°	77°	79°	77°	77°	77°
GFS	82°	81°	83°	84°	80°	81°	83°
ICON	79°	79°	76°	80°	74°	77°	78°
HRRR	81°	80°	—	—	—	—	—
NBM	77°	77°	78°	79°	78°	78°	78°
Confidence	high	high	high	high	high	high	high

Do the models agree? · Rain
Rain	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	0	0	0.04 in	0.01 in	0.09 in	0.01 in	0.02 in
AIFS	0	0	0.05 in	0.13 in	0.25 in	0.05 in	0.05 in
GFS	0	0	0	0.15 in	0.03 in	0	0.07 in
ICON	0	0	0	0.02 in	0.32 in	0	0
HRRR	0	0	—	—	—	—	—
NBM	0	0	0	0.13 in	0.18 in	0	0.13 in
Confidence	high	high	high	medium	medium	high	medium

Do the models agree? · Wind
Wind (mph)	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	717	1020	1123	1021	918	1023	1127
AIFS	7	9	11	10	12	15	14
GFS	1013	1117	1321	1323	1215	916	1121
ICON	615	616	719	921	614	821	513
HRRR	911	1115	—	—	—	—	—
NBM	912	1014	1521	1319	1012	1318	1725
Confidence	high	high	high	high	high	high	high

Chance of rain from the ensemble models

Model	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF (51 scenarios)	0%	0%	67%	78%	84%	45%	46%
GFS (GEFS, 31 scenarios)	0%	0%	48%	87%	48%	42%	55%
NBM (NOAA)	0%	0%	2%	56%	37%	6%	29%
Thunderstorm (NBM)	0%	0%	3%	21%	16%	2%	9%

Each model's day runs midnight to midnight local time; models that reach fewer days are left blank. Rain: daily total. Wind: the day's highest average wind and, in small type, the strongest gust. Highlighted: values that stand out from the rest. The chance of rain comes from many runs of the same model with slightly different starting data.

Outlook

How the coming weeks and months compare with what is normal for the time of year. It is a trend, not a day-by-day forecast.

Next few weeks, compared with normal: normal temperatures and a bit wetter.

Next 6 weeks

When	TemperatureTemp.	Rain	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	Above +3.8 °F	Above +99%	—
Nov 9 – Nov 15Nov 9–Nov 15	A bit below −2.0 °F	Normal	69° / 59°
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +0.9 °F	Normal	69° / 60°
Nov 23 – Nov 29Nov 23–Nov 29	A bit below −0.9 °F	A bit above +45%	65° / 57°
Nov 30 – Dec 6Nov 30–Dec 6	A bit below −1.6 °F	Above +61%	63° / 55°

Coming months

When	TemperatureTemp.	Rain
November	Normal +0.4 °F	A bit above +47%
December	A bit below −1.4 °F	A bit above +28%
January	A bit below −2.0 °F	Normal
February	A bit below −2.3 °F	A bit above +48%
March	A bit below −1.4 °F	A bit above +43%

Weeks: ECMWF 46-day (average of its scenarios), against the normal of the last 20 years for those dates. Months: ECMWF SEAS5. Rain: total against normal. The further ahead, the closer it gets to normal and the less detail it can give.

Belle Chasse climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Belle Chasse is from March to May and from October to November: highs of 72 °F to 85 °F, about 8 rainy days a month and 7 hours of sunshine a day.

Hurricane season: from June to October, peaking in September. In the last 30 years (1996–2025), 21 tropical cyclones passed within 93 mi of Belle Chasse, about 7 every 10 years; 10 of them with hurricane-force winds (74 mph or more). The most recent: Francine, in September 2024.

64° 44°

JanJ
67° 47°

FebF
73° 53°

MarM
79° 59°

AprA
85° 67°

MayM
90° 73°

JunJ
92° 74°

JulJ
91° 75°

AugA
88° 72°

SepS
81° 62°

OctO
72° 51°

NovN
66° 46°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	64°	44°	5.04 in	9	4.5	58°	1.9 ft	–
FebruaryFeb	67°	47°	5.80 in	8	4.8	58°	1.8 ft	–
MarchMar	73°	53°	4.28 in	8	6.0	64°	1.8 ft	–
AprilApr	79°	59°	4.68 in	8	7.0	71°	1.8 ft	–
MayMay	85°	67°	4.96 in	9	8.2	78°	1.5 ft	–
JuneJun	90°	73°	7.43 in	16	7.2	84°	1.4 ft	4
JulyJul	92°	74°	7.60 in	20	7.2	86°	1.1 ft	2
AugustAug	91°	75°	8.02 in	19	7.1	86°	1.2 ft	5
SeptemberSep	88°	72°	6.30 in	12	7.0	83°	1.4 ft	6
OctoberOct	81°	62°	3.90 in	8	6.2	75°	1.7 ft	3
NovemberNov	72°	51°	4.26 in	7	5.7	67°	1.9 ft	1
DecemberDec	66°	46°	4.85 in	9	4.3	61°	1.8 ft	–

Month	Water	Waves	Cyclones
Jan	58°	1.9 ft	–
Feb	58°	1.8 ft	–
Mar	64°	1.8 ft	–
Apr	71°	1.8 ft	–
May	78°	1.5 ft	–
Jun	84°	1.4 ft	4
Jul	86°	1.1 ft	2
Aug	86°	1.2 ft	5
Sep	83°	1.4 ft	6
Oct	75°	1.7 ft	3
Nov	67°	1.9 ft	1
Dec	61°	1.8 ft	–

Days: rainy days in the month. Sun: hours a day.

A normal year brings 67.12 in of rain on about 131 days and about 2,300 hours of sunshine.

Cyclones: how many tropical cyclones (tropical storms, hurricanes and typhoons) passed within 93 mi in each month from 1996 to 2025, according to IBTrACS (NOAA).

1991–2020 averages. Highs, lows and rainfall: TerraClimate; rainy days (0.04 in or more): NASA POWER (MERRA-2); sunshine hours: estimated from solar radiation; water: NOAA OISST; waves (average height): ERA5, 2011–2020. Normals are not a forecast: any given year can turn out very different. Sources and licenses

Temperature

Now74 °Ffeels like 71 °F

Tomorrow55 / 79 °F

It's 74 °F now (feels like 71 °F). Today, 59 °F to 81 °F; tomorrow, 55 °F to 79 °F.

Chance of rain

Today 0%
Thu 29 0%
Fri 30 2%
Sat 31 56% 0.13 in
Sun 1 37% 0.18 in
Mon 2 6%
Tue 3 29% 0.15 in

Today the chance of rain reaches 0%. The next day with likely rain is Saturday 31: 56% and 0.13 in.

No rain in the last 7 days.

Humidity and dew point

Humidity36%

Dew point45 °F

Humidity is 36% now and the dew point is 45 °F.

The dew point is the temperature at which the air becomes saturated: the higher it is, the heavier the air feels.

Visibility and fog

Now33 migood

Clouds31%

Visibility is good now (33 mi). No fog expected today.

The model gives visibility up to about 15 mi: beyond that, the horizon is clear.

UV index

Now0

Today's peak6moderate

Thu 29: 6 · Fri 30: 4 · Sat 31: 5

Index	Level	What to do
0–2	low	No special protection needed.
3–5	moderate	Hat, sunglasses and sunscreen around midday.
6–7	high	Sunscreen, hat and shade between 12 and 4 pm.
8–10	very high	Avoid the midday sun; reflection off the water adds to it.
11+	extreme	Avoid the sun between 11 am and 5 pm; protect yourself even if it is cloudy.

Reflection off water and sand adds radiation: protect yourself more on a boat or at the beach.

Barometric pressure

↗ Rising Anglers say fish bite less for a while
→ Steady · now Anglers expect normal activity
↘ Falling Anglers say fish feed more before the change

30.1030.20 30.06

Steady now (−0.01 inHg in 3 hours). Over the next 48 hours: −0.06 inHg. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityGood · 47

Saharan dustNo

Previous days

The weather over the last 30 days, as the models analyzed it. Tap a day to see it hour by hour.

Day	Sky	Low / high	Max wind
Tue 27	Overcast	64 / 79 °F	9 mph ENE
Mon 26	Overcast	62 / 77 °F	9 mph ENE
Sun 25	Overcast	60 / 77 °F	10 mph NE
Sat 24	Clear sky	61 / 78 °F	11 mph ENE
Fri 23	Overcast	57 / 81 °F	6 mph NE
Thu 22	Mainly clear	58 / 80 °F	6 mph NNE
Wed 21	Mainly clear	57 / 78 °F	7 mph NE

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Tue 20	Mainly clear	62 / 77 °F	0	9 mph ENE
Mon 19	Overcast	59 / 73 °F	0	10 mph NE
Sun 18	Overcast	57 / 73 °F	0	13 mph NE
Sat 17	Overcast	57 / 70 °F	0	18 mph NNE
Fri 16	Partly cloudy	67 / 85 °F	0	19 mph N
Thu 15	Clear sky	69 / 85 °F	0	8 mph ESE
Wed 14	Overcast	64 / 86 °F	0	7 mph ESE
Tue 13	Overcast	67 / 87 °F	0	6 mph SE
Mon 12	Overcast	63 / 86 °F	0	5 mph ESE
Sun 11	Overcast	66 / 85 °F	0	6 mph SW
Sat 10	Overcast	66 / 78 °F	0	10 mph N
Fri 9	Light drizzle	72 / 79 °F	0.01 in	21 mph NNE
Thu 8	Light drizzle	74 / 82 °F	0.01 in	16 mph NE
Wed 7	Overcast	75 / 84 °F	0	11 mph NE
Tue 6	Light drizzle	74 / 81 °F	0.01 in	11 mph NE
Mon 5	Showers	74 / 79 °F	1.48 in	8 mph NE
Sun 4	Thunderstorm	75 / 80 °F	1.87 in	8 mph E
Sat 3	Showers	76 / 86 °F	0.96 in	8 mph E
Fri 2	Light showers	77 / 87 °F	0.37 in	7 mph E
Thu 1	Drizzle	76 / 86 °F	0.12 in	9 mph SE
Wed 30	Light drizzle	73 / 88 °F	0.04 in	10 mph ESE
Tue 29	Light drizzle	71 / 88 °F	0.02 in	7 mph E
Mon 28	Light drizzle	73 / 89 °F	0.01 in	6 mph NNW

These are the models at the start of each day (ECMWF and GFS; waves from Météo-France), not readings from a weather station: there can be differences at specific spots.

Questions about the weather in Belle ChasseQuestions

What's the weather like today in Belle Chasse?

Mainly clear, from 59 °F to 81 °F, with a light breeze from the east-northeast (4 mph) and a 0% chance of rain.

Will it rain tomorrow in Belle Chasse?

On Thursday 29 the chance of rain is 0% (0.00 in): overcast.

How warm will it be this week?

Between a low of 55 °F and a high of 81 °F; the warmest day, Wednesday 28.

What's the UV index today?

It reaches 6 (moderate). Hat, sunglasses and sunscreen around midday.

Is the pressure rising or falling?

It's 30.14 inHg and steady: −0.01 inHg over the last 24 hours.

When is the best time to visit Belle Chasse?

The best time to visit Belle Chasse is from March to May and from October to November: highs of 72 °F to 85 °F, about 8 rainy days a month and 7 hours of sunshine a day.

What is the weather like in Belle Chasse in October?

In October, Belle Chasse normally sees highs of 81 °F and lows of 62 °F, with about 8 rainy days (3.90 in for the month) and 6 hours of sunshine a day. The sea is around 75 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Belle Chasse?

The warmest is July, with average highs of 92 °F, and the coldest January, with lows of 44 °F. The wettest is August (8.02 in) and the driest, October.

When is hurricane season in Belle Chasse?

Hurricane season: from June to October, peaking in September. In the last 30 years (1996–2025), 21 tropical cyclones passed within 93 mi of Belle Chasse, about 7 every 10 years; 10 of them with hurricane-force winds (74 mph or more). The most recent: Francine, in September 2024.

More about Belle Chasse today

Weather near Belle Chasse

Only places with a different forecast: spots a few miles apart share the same model cell and wouldn't add anything.

Learn more

Weather: Open-Meteo, CC BY 4.0, with the best model for each spot and lead time (NOAA HRRR and NBM in the U.S., Météo-France AROME, DWD ICON-EU, ECMWF IFS and NOAA GFS); ECMWF grid point 7.3 mi away. The comparison also uses ICON (DWD), AIFS (ECMWF) and ARPEGE (Météo-France). Outlook: ECMWF 46-day and SEAS5. Chance of rain from ensemble models (ECMWF, GEFS and NBM). UV, air quality and pollen: CAMS (Copernicus).

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 6:04 pm (local time).

Spotted a mistake? Tell us · Where the weather and sea data come from