Grand Bayou, LA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Grand Bayou, LA in one place.
Sunny. High near 91, with temperatures falling to around 89 in the afternoon. East wind around 5 mph. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Grand Bayou, 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 Bayou, 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
- LIX
- Source
- NOAA / NWS
Daily Outlook
This Week in Grand Bayou
This Afternoon looks like the warmest upcoming period in Grand Bayou at 91 degrees F.
Friday Night is the coolest period ahead with temperatures near 76 degrees F.
The strongest winds are forecast for Wednesday at about 5 to 20 mph E.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 7:49 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- LIX
- Radar station
- KLIX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 79. East wind 0 to 5 mph. New rainfall amounts less than a tenth of an inch possible.
A slight chance of showers and thunderstorms between 7am and 9am, then a chance of showers and thunderstorms between 9am and 10am, then a chance of showers and thunderstorms. Mostly sunny. High near 89, with temperatures falling to around 85 in the afternoon. East wind 5 to 20 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 79. East wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Sunny, with a high near 88. East wind 10 to 20 mph.
Clear, with a low around 77. East wind 5 to 15 mph.
Sunny, with a high near 89. Northeast wind 5 to 15 mph.
Clear, with a low around 76. East wind 0 to 5 mph.
Sunny, with a high near 91. East wind 0 to 5 mph.
Mostly clear, with a low around 77. Southeast wind around 0 mph.
A chance of showers and thunderstorms between 7am and 1pm, then a slight chance of showers and thunderstorms. Sunny, with a high near 90. Northeast wind 0 to 5 mph.
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 76. East wind 0 to 5 mph.
A chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 89. Northeast wind 0 to 5 mph.
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 76. Southeast wind 0 to 5 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Sep 15
|
Sunny
|
91°F |
5 mph
E
|
|
Tonight
Sep 15
|
Mostly Clear
|
79°F |
0 to 5 mph
E
|
|
Wednesday
Sep 16
|
Chance Showers And Thunderstorms
|
89°F |
5 to 20 mph
E
|
|
Wednesday Night
Sep 16
|
Chance Showers And Thunderstorms then Partly Cloudy
|
79°F |
5 to 15 mph
E
|
|
Thursday
Sep 17
|
Sunny
|
88°F |
10 to 20 mph
E
|
|
Thursday Night
Sep 17
|
Clear
|
77°F |
5 to 15 mph
E
|
|
Friday
Sep 18
|
Sunny
|
89°F |
5 to 15 mph
NE
|
|
Friday Night
Sep 18
|
Clear
|
76°F |
0 to 5 mph
E
|
|
Saturday
Sep 19
|
Sunny
|
91°F |
0 to 5 mph
E
|
|
Saturday Night
Sep 19
|
Mostly Clear
|
77°F |
0 mph
|
|
Sunday
Sep 20
|
Chance Showers And Thunderstorms
|
90°F |
0 to 5 mph
NE
|
|
Sunday Night
Sep 20
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
76°F |
0 to 5 mph
E
|
|
Monday
Sep 21
|
Chance Showers And Thunderstorms
|
89°F |
0 to 5 mph
NE
|
|
Monday Night
Sep 21
|
Chance Showers And Thunderstorms then Partly Cloudy
|
76°F |
0 to 5 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grand Bayou.