Grand Chenier, LA Weather Forecast

Local 7-day forecast

88°

Sunny

Track current conditions, temperature changes, wind, and the full daily outlook for Grand Chenier, LA in one place.

Tuesday, September 15, 2026

Wind: 10 mph S

This Afternoon

Sunny, with a high near 88. Heat index values as high as 100. South wind around 10 mph.

Local 7-day forecast

Local Weather Overview

This forecast page for Grand Chenier, LA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Sep 15, 2026 7:49 PM CDT.

The active forecast window currently covers Sep 15 to Sep 21, 2026 for Grand Chenier, LA.

Page Snapshot

Page focus: city weather
Forecast window: Sep 15 to Sep 21, 2026
Latest sync: Sep 15, 2026 7:49 PM CDT
Forecast office: LCH
Source: NOAA / NWS

Next High

88°F

This Afternoon

Next Low

81°F

Tonight

Rain Outlook

Periods mentioning precipitation

Windiest

10 to 15 mph

Wednesday

Daily Outlook

Today

Sep 15

Sunny

88 °F

/ 81°F

Wind 10 mph

Wed

Sep 16

Sunny then Slight Chance Showers And Thunderstorms

90 °F

/ 80°F

Wind 10 to 15 mph

Thu

Sep 17

Chance Showers And Thunderstorms then Sunny

90 °F

/ 78°F

Wind 15 mph

Fri

Sep 18

Sunny

89 °F

/ 79°F

Wind 10 to 15 mph

Sat

Sep 19

Sunny

89 °F

/ 80°F

Wind 5 to 10 mph

Sun

Sep 20

Slight Chance Showers And Thunderstorms

89 °F

/ 80°F

Wind 5 to 10 mph

Mon

Sep 21

Chance Showers And Thunderstorms

89 °F

/ 79°F

Wind 5 mph

This Week in Grand Chenier

Wednesday looks like the warmest upcoming period in Grand Chenier at 90 degrees F.

Thursday Night is the coolest period ahead with temperatures near 78 degrees F.

The strongest winds are forecast for Wednesday at about 10 to 15 mph E.

Precipitation is mentioned in 7 upcoming forecast periods.

Forecast Details

Last updated: Sep 15, 2026 7:49 PM CDT
Coverage: 7 days
Time zone: America/Chicago
Forecast office: LCH
Radar station: KLCH

Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.

Open NOAA source

Extended Forecast

Tonight

Sep 15

81°F

Mostly Clear

5 to 10 mph SE

Mostly clear, with a low around 81. Heat index values as high as 102. Southeast wind 5 to 10 mph.

Wednesday

Sep 16

90°F

Sunny then Slight Chance Showers And Thunderstorms

10 to 15 mph E

A slight chance of showers and thunderstorms after 3pm. Sunny, with a high near 90. Heat index values as high as 103. East wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible.

Wednesday Night

Sep 16

80°F

Slight Chance Showers And Thunderstorms

15 mph E

A slight chance of showers and thunderstorms before 2am, then a chance of showers and thunderstorms between 2am and 4am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 80. Heat index values as high as 103. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

Thursday

Sep 17

90°F

Chance Showers And Thunderstorms then Sunny

15 mph E

A chance of showers and thunderstorms before 7am. Sunny, with a high near 90. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

Thursday Night

Sep 17

78°F

Mostly Clear

10 to 15 mph E

Mostly clear, with a low around 78. East wind 10 to 15 mph, with gusts as high as 20 mph.

Friday

Sep 18

89°F

Sunny

10 to 15 mph E

Sunny, with a high near 89. East wind 10 to 15 mph.

Friday Night

Sep 18

79°F

Mostly Clear

5 to 10 mph E

Mostly clear, with a low around 79. East wind 5 to 10 mph.

Saturday

Sep 19

89°F

Sunny

5 to 10 mph E

Sunny, with a high near 89. East wind 5 to 10 mph.

Saturday Night

Sep 19

80°F

Mostly Clear

5 to 10 mph SE

Mostly clear, with a low around 80.

Sunday

Sep 20

89°F

Slight Chance Showers And Thunderstorms

5 to 10 mph SE

A slight chance of showers and thunderstorms after 7am. Sunny, with a high near 89. Chance of precipitation is 20%.

Sunday Night

Sep 20

80°F

Slight Chance Showers And Thunderstorms then Mostly Clear

5 to 10 mph SE

A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 80. Chance of precipitation is 20%.

Monday

Sep 21

89°F

Chance Showers And Thunderstorms

5 mph E

A chance of showers and thunderstorms after 7am. Sunny, with a high near 89. Chance of precipitation is 30%.

Monday Night

Sep 21

79°F

Chance Showers And Thunderstorms then Partly Cloudy

5 mph SE

A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 79.

Detailed Forecast

Period	Conditions	Temp	Wind	Details
This Afternoon Sep 15	Sunny	88°F	10 mph S	Sunny, with a high near 88. Heat index values as high as 100. South wind around 10 mph.
Tonight Sep 15	Mostly Clear	81°F	5 to 10 mph SE	Mostly clear, with a low around 81. Heat index values as high as 102. Southeast wind 5 to 10 mph.
Wednesday Sep 16	Sunny then Slight Chance Showers And Thunderstorms	90°F	10 to 15 mph E	A slight chance of showers and thunderstorms after 3pm. Sunny, with a high near 90. Heat index values as high as 103. Ea...
Wednesday Night Sep 16	Slight Chance Showers And Thunderstorms	80°F	15 mph E	A slight chance of showers and thunderstorms before 2am, then a chance of showers and thunderstorms between 2am and 4am,...
Thursday Sep 17	Chance Showers And Thunderstorms then Sunny	90°F	15 mph E	A chance of showers and thunderstorms before 7am. Sunny, with a high near 90. East wind around 15 mph, with gusts as hig...
Thursday Night Sep 17	Mostly Clear	78°F	10 to 15 mph E	Mostly clear, with a low around 78. East wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Sep 18	Sunny	89°F	10 to 15 mph E	Sunny, with a high near 89. East wind 10 to 15 mph.
Friday Night Sep 18	Mostly Clear	79°F	5 to 10 mph E	Mostly clear, with a low around 79. East wind 5 to 10 mph.
Saturday Sep 19	Sunny	89°F	5 to 10 mph E	Sunny, with a high near 89. East wind 5 to 10 mph.
Saturday Night Sep 19	Mostly Clear	80°F	5 to 10 mph SE	Mostly clear, with a low around 80.
Sunday Sep 20	Slight Chance Showers And Thunderstorms	89°F	5 to 10 mph SE	A slight chance of showers and thunderstorms after 7am. Sunny, with a high near 89. Chance of precipitation is 20%.
Sunday Night Sep 20	Slight Chance Showers And Thunderstorms then Mostly Clear	80°F	5 to 10 mph SE	A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 80. Chance of precipitation is...
Monday Sep 21	Chance Showers And Thunderstorms	89°F	5 mph E	A chance of showers and thunderstorms after 7am. Sunny, with a high near 89. Chance of precipitation is 30%.
Monday Night Sep 21	Chance Showers And Thunderstorms then Partly Cloudy	79°F	5 mph SE	A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 79.

Nearby Forecasts

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Region Links

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United States weather

National weather entry point

Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.