29.2633’ N, 89.9567’ W

Grand Isle, LA

87°
H 88°
L 80°
ENE
14mph
Low tide
6:38 pm

Grand Isle, LA Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Wed
Sep 23
Sunny
Close Hourly
88º / 80º 1% ENE 15 mph 69%
1pm Sunny 87º 1% ENE 14 mph 69%
2pm Sunny 87º 1% ENE 14 mph 68%
3pm Sunny 87º 1% ENE 15 mph 67%
4pm Sunny 86º 1% ENE 14 mph 68%
5pm Sunny 85º 1% ENE 14 mph 69%
6pm Sunny 85º 1% ENE 12 mph 68%
7pm Clear 84º 1% ENE 11 mph 72%
8pm Clear 83º 3% ENE 10 mph 74%
9pm Clear 83º 3% E 9 mph 77%
10pm Clear 83º 3% E 9 mph 77%
11pm Clear 83º 4% E 7 mph 76%
Thu
Sep 24
Partly Cloudy
View Hourly
86º / 78º 10% NE 13 mph 73%
12am Clear 83º 4% E 6 mph 77%
1am Clear 82º 5% ENE 5 mph 76%
2am Clear 82º 9% ENE 5 mph 76%
3am Mostly Clear 82º 9% NE 6 mph 77%
4am Partly Cloudy 82º 12% NNE 7 mph 78%
5am Partly Cloudy 82º 13% NNE 8 mph 79%
6am Partly Cloudy 81º 7% NNE 10 mph 81%
7am Partly Cloudy 81º 6% NNE 11 mph 82%
8am Partly Cloudy 82º 6% NNE 13 mph 80%
9am Sunny 83º 5% NNE 13 mph 79%
10am Mostly Sunny 83º 5% NNE 13 mph 78%
11am Mostly Sunny 84º 4% NE 11 mph 76%
12pm Mostly Sunny 85º 3% NE 11 mph 74%
1pm Partly Cloudy 85º 3% NE 11 mph 70%
2pm Partly Cloudy 85º 2% NE 9 mph 68%
3pm Partly Cloudy 86º 2% ENE 10 mph 68%
4pm Partly Cloudy 85º 11% ENE 10 mph 68%
5pm Mostly Cloudy 85º 9% ENE 10 mph 68%
6pm Mostly Cloudy 85º 8% ENE 9 mph 67%
7pm Mostly Cloudy 84º 9% ENE 8 mph 70%
8pm Mostly Cloudy 83º 5% ENE 8 mph 73%
9pm Mostly Cloudy 82º 5% E 8 mph 76%
10pm Mostly Cloudy 81º 5% E 8 mph 76%
11pm Mostly Cloudy 81º 7% E 8 mph 77%
Fri
Sep 25
Partly Cloudy
View Hourly
82º / 77º 22% ENE 14 mph 72%
12am Mostly Cloudy 80º 18% E 7 mph 78%
1am Cloudy 80º 14% E 8 mph 78%
2am Mostly Cloudy 80º 19% ENE 8 mph 78%
3am Partly Cloudy 80º 23% ENE 8 mph 77%
4am Partly Cloudy 79º 19% ENE 8 mph 79%
5am Partly Cloudy 79º 24% ENE 10 mph 79%
6am Partly Cloudy 80º 20% ENE 9 mph 78%
7am Mostly Cloudy 79º 18% ENE 10 mph 79%
8am Partly Cloudy 80º 22% ENE 11 mph 79%
9am Partly Cloudy 81º 14% ENE 13 mph 76%
10am Partly Cloudy 81º 12% ENE 13 mph 75%
11am Partly Cloudy 81º 15% ENE 13 mph 74%
12pm Partly Cloudy 82º 9% ENE 13 mph 73%
Sat
Sep 26
Partly Cloudy 84º / 78º 1% ENE 8 mph 60%
Sun
Sep 27
Partly Cloudy 84º / 78º 4% NE 7 mph 58%
Mon
Sep 28
Partly Cloudy 84º / 78º 15% ESE 7 mph 64%
Tue
Sep 29
Mostly Sunny 84º / 79º 21% SE 11 mph 64%
Wed
Sep 30
Thunderstorms 84º / 77º 62% SSE 14 mph 70%

Weather Radar for Grand Isle, LA See Radar

* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Grand Isle, LA

Today
High : 88ºF
NE wind around 10 kt. Sunny. Seas around 1 ft.
Tonight
Low : 82ºF
Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.
Thursday
High : 87ºF
NNE wind around 10 kt. Sunny. Seas around 1 ft.
Thursday Night
Low : 80ºF
Variable winds 5 kt or less. Partly cloudy. Seas around 1 ft.
Friday
High : 85ºF
ENE wind 10 to 15 kt. A slight chance of showers before 1pm. Seas around 1 ft.
Friday Night
Low : 80ºF
E wind around 10 kt. Partly cloudy. Seas around 1 ft.
Saturday
High : 85ºF
E wind 5 to 10 kt. Mostly sunny. Seas around 1 ft.
Saturday Night
Low : 80ºF
Variable winds 5 kt or less. Partly cloudy. Seas around 1 ft.
Sunday
High : 85ºF
Variable winds 5 kt or less. Mostly sunny. Seas around 1 ft.

NOAA Buoy Data Near Grand Isle, LA See Map

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    Wind Speed Forecast for Grand Isle, LA

    WednesdayThursdayFriday
    Wind Speed (MPH) 1414958131110881013
    6pm10pm2am6am10am2pm6pm10pm2am6am10am2pm
    MPH 1414958131110881013
    DIR ENEENEEENENNENNENEENEEEENEENE

    Current Weather Conditions In Grand Isle, LA

    As Of: 30 minutes ago

    • 87ºF
    • 97ºF
    • 14mph
    • 0º (ENE)
    • 14mph
    • Sunny
    • 10mi
    • 30.01"
    • 69%
    • 0ºF

    The weather right now in Grand Isle, LA is Sunny. The current temperature is 87°F, and the expected high and low for today, Wednesday, September 23, 2026, are 88° high temperature and 80°F low temperature. The wind is currently blowing at 14 miles per hour, and coming from the East Northeast. The wind is gusting to 14 mph. With the wind and the atmosphere the temperature feels like 97° Fahrenheit. Expected precipitation is 1 percent, with current humidity at 69 percent, and air pressure at 30.01 in. Visibility is 10 nautical miles. There are no current weather alert(s).