Grand Coteau, LA Weather Forecast
Local 7-day forecast
Patchy Fog then Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Grand Coteau, LA in one place.
Patchy fog before 9am. Mostly sunny, with a high near 90. Heat index values as high as 98. Southwest wind 0 to 5 mph.
Local Weather Overview
This forecast page for Grand Coteau, 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: May 30, 2026 7:28 PM CDT.
The active forecast window currently covers May 31 to Jun 5, 2026 for Grand Coteau, LA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 31 to Jun 5, 2026
- Latest sync
- May 30, 2026 7:28 PM CDT
- Forecast office
- LCH
- Source
- NOAA / NWS
Daily Outlook
This Week in Grand Coteau
Sunday looks like the warmest upcoming period in Grand Coteau at 90 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 69 degrees F.
The strongest winds are forecast for Friday at about 5 to 10 mph SE.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- May 30, 2026 7:28 PM CDT
- Coverage
- 6 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 sourceExtended Forecast
Partly cloudy, with a low around 73. Heat index values as high as 98. South wind 0 to 5 mph.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. West wind around 0 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 73. Southwest wind around 0 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. North wind 0 to 5 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Northeast wind 0 to 5 mph. Chance of precipitation is 30%.
A slight chance of rain showers before 7am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 86. Northeast wind around 5 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 69. Chance of precipitation is 30%.
A slight chance of rain showers before 7am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 70. Chance of precipitation is 40%.
A chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 50%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
May 31
|
Patchy Fog then Mostly Sunny
|
90°F |
0 to 5 mph
SW
|
|
Sunday Night
May 31
|
Partly Cloudy
|
73°F |
0 to 5 mph
S
|
|
Monday
Jun 1
|
Mostly Sunny then Chance Showers And Thunderstorms
|
88°F |
0 mph
|
|
Monday Night
Jun 1
|
Chance Showers And Thunderstorms then Partly Cloudy
|
73°F |
0 mph
|
|
Tuesday
Jun 2
|
Mostly Sunny then Chance Showers And Thunderstorms
|
89°F |
0 to 5 mph
N
|
|
Tuesday Night
Jun 2
|
Chance Showers And Thunderstorms
|
71°F |
0 to 5 mph
NE
|
|
Wednesday
Jun 3
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
86°F |
5 mph
NE
|
|
Wednesday Night
Jun 3
|
Chance Showers And Thunderstorms
|
69°F |
0 to 5 mph
E
|
|
Thursday
Jun 4
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
85°F |
5 mph
E
|
|
Thursday Night
Jun 4
|
Chance Showers And Thunderstorms then Partly Cloudy
|
70°F |
5 mph
SE
|
|
Friday
Jun 5
|
Chance Showers And Thunderstorms
|
85°F |
5 to 10 mph
SE
|
|
Friday Night
Jun 5
|
Chance Showers And Thunderstorms
|
72°F |
5 to 10 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grand Coteau.
