29.2633’ N, 89.9567’ W

Grand Isle, LA

76°
H 81°
L 77°
ESE
4mph
Low tide
11:24 am

Grand Isle, LA Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Wed
Oct 14
Partly Cloudy
Close Hourly
81º / 77º 15% E 10 mph 79%
6am Mostly Clear 76º 2% ESE 4 mph 83%
7am Mostly Clear 76º 2% E 4 mph 84%
8am Mostly Sunny 76º 3% ENE 5 mph 86%
9am Sunny 79º 3% ENE 8 mph 81%
10am Sunny 78º 3% ENE 9 mph 83%
11am Sunny 78º 3% ENE 9 mph 83%
12pm Sunny 79º 2% ENE 9 mph 79%
1pm Sunny 80º 5% E 8 mph 76%
2pm Sunny 80º 5% E 9 mph 74%
3pm Sunny 81º 5% E 9 mph 72%
4pm Sunny 80º 5% E 9 mph 73%
5pm Sunny 81º 5% E 9 mph 73%
6pm Sunny 80º 5% E 9 mph 73%
7pm Clear 79º 5% E 9 mph 76%
8pm Clear 78º 5% E 10 mph 80%
9pm Clear 78º 5% E 10 mph 80%
10pm Clear 78º 5% ESE 11 mph 80%
11pm Clear 78º 5% ESE 11 mph 79%
Thu
Oct 15
Sunny
View Hourly
82º / 76º 10% ESE 12 mph 71%
12am Clear 79º 5% ESE 11 mph 78%
1am Clear 79º 5% ESE 11 mph 76%
2am Clear 79º 4% ESE 11 mph 75%
3am Clear 79º 4% ESE 11 mph 75%
4am Clear 79º 4% ESE 10 mph 74%
5am Clear 79º 4% ESE 10 mph 73%
6am Clear 79º 4% ESE 10 mph 73%
7am Clear 78º 3% ESE 10 mph 72%
8am Sunny 78º 3% ESE 10 mph 75%
9am Sunny 80º 4% ESE 11 mph 74%
10am Sunny 80º 4% ESE 11 mph 73%
11am Sunny 80º 4% ESE 11 mph 73%
12pm Sunny 81º 10% ESE 10 mph 72%
1pm Sunny 81º 6% ESE 10 mph 69%
2pm Sunny 81º 3% ESE 10 mph 68%
3pm Sunny 82º 3% ESE 10 mph 68%
4pm Sunny 81º 4% ESE 10 mph 68%
5pm Sunny 81º 3% ESE 9 mph 69%
6pm Sunny 81º 3% E 9 mph 70%
7pm Clear 80º 3% E 10 mph 74%
8pm Mostly Clear 79º 3% E 10 mph 76%
9pm Mostly Clear 79º 4% E 11 mph 77%
10pm Mostly Clear 78º 4% ESE 11 mph 79%
11pm Mostly Clear 78º 4% ESE 10 mph 79%
Fri
Oct 16
Partly Cloudy
View Hourly
81º / 61º 19% NNE 10 mph 77%
12am Mostly Clear 78º 4% ESE 9 mph 78%
1am Partly Cloudy 78º 5% ESE 8 mph 78%
2am Partly Cloudy 79º 10% ESE 7 mph 77%
3am Mostly Cloudy 79º 13% ESE 6 mph 80%
4am Mostly Cloudy 78º 12% ESE 5 mph 81%
5am Partly Cloudy 78º 12% E 5 mph 81%
Sat
Oct 17
Partly Cloudy/Wind 72º / 66º 1% NNE 28 mph 58%
Sun
Oct 18
Partly Cloudy/Wind 74º / 70º 15% ENE 22 mph 65%
Mon
Oct 19
AM Showers/Wind 77º / 71º 47% ENE 23 mph 74%
Tue
Oct 20
Partly Cloudy 78º / 72º 24% ENE 20 mph 73%
Wed
Oct 21
Mostly Sunny 79º / 71º 18% ENE 18 mph 73%

Weather Radar for Grand Isle, LA See Radar

* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Grand Isle, LA

Wednesday
High : 81ºF
ENE wind 5 to 10 kt. Sunny. Seas around 1 ft.
Wednesday Night
Low : 79ºF
ESE wind around 10 kt. Clear. Seas around 1 ft.
Thursday
High : 81ºF
ESE wind around 10 kt. Sunny. Seas 1 ft or less.
Thursday Night
Low : 74ºF
ESE wind 5 to 10 kt. Partly cloudy. Seas around 1 ft.
Friday
High : 81ºF
NE wind 5 to 10 kt. A chance of showers and thunderstorms. Seas around 1 ft.
Friday Night
Low : 66ºF
NE wind 5 to 10 kt becoming NNE 20 to 30 kt. Winds could gust as high as 35 kt. Partly cloudy. Seas 1 to 2 ft.
Saturday
High : 73ºF
NNE wind 20 to 30 kt, with gusts as high as 35 kt. Sunny. Seas around 2 ft.
Saturday Night
Low : 69ºF
NE wind around 20 kt, with gusts as high as 25 kt. Mostly clear. Seas around 2 ft.
Sunday
High : 77ºF
ENE wind around 20 kt, with gusts as high as 30 kt. A chance of showers. Seas 2 to 3 ft.

NOAA Buoy Data Near Grand Isle, LA See Map

Loading Map...
Loading Buoy Data...

    Wind Speed Forecast for Grand Isle, LA

    WednesdayThursdayFriday
    Wind Speed (MPH) 499911111011109117
    11am3pm7pm11pm3am7am11am3pm7pm11pm3am7am
    MPH 499911111011109117
    DIR ESEENEEEESEESEESEESEESEEESEESE

    Current Weather Conditions In Grand Isle, LA

    As Of: 20 minutes ago

    • 76ºF
    • 76ºF
    • 4mph
    • 0º (ESE)
    • 4mph
    • Mostly Clear
    • 7mi
    • 30.05"
    • 83%
    • 0ºF

    The weather right now in Grand Isle, LA is Mostly Clear. The current temperature is 76°F, and the expected high and low for today, Wednesday, October 14, 2026, are 81° high temperature and 77°F low temperature. The wind is currently blowing at 4 miles per hour, and coming from the East Southeast. The wind is gusting to 4 mph. With the wind and the atmosphere the temperature feels like 76° Fahrenheit. Expected precipitation is 2 percent, with current humidity at 83 percent, and air pressure at 30.05 in. Visibility is 7 nautical miles. There are 1 current weather alert(s).

    Weather Alerts
    Dense Fog Advisory - 1:54am Wed Oct 14 2026

    ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 10 AM CDT THIS MORNING...

    WHAT: Visibility one quarter mile or less in dense fog.

    WHERE: Portions of southeast Louisiana and southern Mississippi.

    WHEN: Until 10 AM CDT this morning.

    IMPACTS: Low visibility could make driving conditions hazardous.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    If driving, slow down, use your headlights, and leave plenty of
    distance ahead of you.

    &&