Grandbois, LA Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Grandbois, LA in one place.
A chance of showers and thunderstorms. Sunny. High near 91, with temperatures falling to around 89 in the afternoon. East wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Grandbois, 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 Grandbois, 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 Grandbois
This Afternoon looks like the warmest upcoming period in Grandbois at 91 degrees F.
Friday Night is the coolest period ahead with temperatures near 72 degrees F.
The strongest winds are forecast for Wednesday at about 5 to 15 mph NE.
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 77. 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 10am and noon, then a chance of showers and thunderstorms between noon and 1pm, then a chance of showers and thunderstorms. Mostly sunny. High near 90, with temperatures falling to around 86 in the afternoon. Northeast wind 5 to 15 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 77. East wind 5 to 15 mph. Chance of precipitation is 20%.
Sunny, with a high near 89. East wind 5 to 15 mph.
Clear, with a low around 73. East wind 0 to 10 mph.
Sunny, with a high near 90. Northeast wind 5 to 10 mph.
Clear, with a low around 72. Northeast wind 0 to 5 mph.
Sunny, with a high near 91. East wind 0 to 5 mph.
Mostly clear, with a low around 74. South wind 0 to 5 mph.
A chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Sunny, with a high near 91. Northeast wind 0 to 5 mph.
A chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 74. East wind 0 to 5 mph.
A chance of showers and thunderstorms after 1pm. Sunny, with a high near 90. East wind 0 to 5 mph.
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 75. East wind around 0 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Sep 15
|
Chance Showers And Thunderstorms
|
91°F |
5 mph
E
|
|
Tonight
Sep 15
|
Mostly Clear
|
77°F |
0 to 5 mph
E
|
|
Wednesday
Sep 16
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
90°F |
5 to 15 mph
NE
|
|
Wednesday Night
Sep 16
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
77°F |
5 to 15 mph
E
|
|
Thursday
Sep 17
|
Sunny
|
89°F |
5 to 15 mph
E
|
|
Thursday Night
Sep 17
|
Clear
|
73°F |
0 to 10 mph
E
|
|
Friday
Sep 18
|
Sunny
|
90°F |
5 to 10 mph
NE
|
|
Friday Night
Sep 18
|
Clear
|
72°F |
0 to 5 mph
NE
|
|
Saturday
Sep 19
|
Sunny
|
91°F |
0 to 5 mph
E
|
|
Saturday Night
Sep 19
|
Mostly Clear
|
74°F |
0 to 5 mph
S
|
|
Sunday
Sep 20
|
Chance Showers And Thunderstorms
|
91°F |
0 to 5 mph
NE
|
|
Sunday Night
Sep 20
|
Chance Showers And Thunderstorms then Mostly Clear
|
74°F |
0 to 5 mph
E
|
|
Monday
Sep 21
|
Sunny then Chance Showers And Thunderstorms
|
90°F |
0 to 5 mph
E
|
|
Monday Night
Sep 21
|
Chance Showers And Thunderstorms then Partly Cloudy
|
75°F |
0 mph
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grandbois.