Grand Isle, LA Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Fri
Jun 13
Partly Cloudy -º / 82º 15% S 9 mph 80%
Sat
Jun 14
Partly Cloudy
View Hourly
85º / 81º 20% SSW 10 mph 75%
3am Partly Cloudy 83º 13% S 9 mph 81%
4am Partly Cloudy 83º 9% S 9 mph 81%
5am Partly Cloudy 83º 9% S 8 mph 79%
6am Partly Cloudy 83º 6% S 8 mph 77%
7am Partly Cloudy 83º 6% SSW 8 mph 80%
8am Partly Cloudy 84º 3% SSW 10 mph 76%
9am Partly Cloudy 85º 3% SSW 10 mph 74%
10am Partly Cloudy 84º 6% SSW 9 mph 74%
11am Partly Cloudy 83º 8% SSW 10 mph 77%
12pm Partly Cloudy 83º 6% SSW 9 mph 77%
1pm Partly Cloudy 84º 15% S 10 mph 76%
2pm Partly Cloudy 84º 15% SSW 10 mph 75%
3pm Partly Cloudy 84º 20% SSW 10 mph 74%
4pm Partly Cloudy 84º 21% SSW 10 mph 73%
5pm Mostly Cloudy 84º 15% SSW 9 mph 73%
6pm Partly Cloudy 83º 9% SSW 8 mph 75%
7pm Partly Cloudy 83º 15% SSW 8 mph 77%
8pm Partly Cloudy 82º 13% SW 7 mph 78%
9pm Partly Cloudy 82º 7% SSW 6 mph 79%
10pm Partly Cloudy 82º 7% S 7 mph 78%
11pm Partly Cloudy 82º 7% S 6 mph 79%
Sun
Jun 15
Partly Cloudy
View Hourly
84º / 80º 24% SSW 8 mph 77%
12am Mostly Cloudy 83º 7% S 6 mph 79%
1am Mostly Cloudy 83º 8% S 6 mph 79%
2am Mostly Cloudy 83º 7% S 7 mph 77%
3am Mostly Cloudy 83º 10% SSW 7 mph 77%
4am Mostly Cloudy 82º 11% SSW 7 mph 78%
5am Mostly Cloudy 82º 24% SSW 7 mph 78%
6am Mostly Cloudy 82º 20% SSW 6 mph 76%
7am Partly Cloudy 82º 24% SSW 5 mph 76%
8am Partly Cloudy 82º 11% SSW 6 mph 78%
9am Partly Cloudy 82º 8% SSW 6 mph 78%
10am Mostly Cloudy 82º 10% SSW 5 mph 80%
11am Partly Cloudy 82º 22% S 7 mph 80%
12pm Isolated Thunderstorms 82º 32% S 7 mph 80%
1pm Partly Cloudy 82º 24% S 8 mph 78%
2pm Scattered Thunderstorms 83º 45% S 7 mph 74%
3pm Mostly Cloudy 83º 24% SSW 8 mph 73%
4pm Partly Cloudy 83º 15% S 7 mph 71%
5pm Partly Cloudy 83º 15% SSW 8 mph 74%
6pm Mostly Cloudy 83º 15% SSW 7 mph 77%
7pm Mostly Cloudy 82º 15% SSW 6 mph 78%
8pm Mostly Cloudy 82º 15% SSW 6 mph 77%
9pm Mostly Cloudy 83º 15% SW 6 mph 77%
10pm Partly Cloudy 82º 7% SSW 6 mph 77%
11pm Partly Cloudy 82º 7% SSW 6 mph 77%
Mon
Jun 16
AM Thunderstorms
View Hourly
83º / 80º 34% S 10 mph 78%
12am Partly Cloudy 82º 7% S 7 mph 77%
1am Mostly Cloudy 82º 7% S 8 mph 77%
2am Mostly Cloudy 82º 10% S 8 mph 77%
Tue
Jun 17
Scattered Thunderstorms 84º / 81º 48% S 12 mph 74%
Wed
Jun 18
AM Thunderstorms 86º / 82º 36% S 12 mph 72%
Thu
Jun 19
Mostly Cloudy 86º / 81º 24% SSE 8 mph 73%
Fri
Jun 20
Partly Cloudy 86º / 81º 22% SE 10 mph 72%

Weather Radar for Grand Isle, LA See Radar

* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Grand Isle, LA

Overnight
Low : 82ºF
Variable winds 5 kt or less. A slight chance of showers and thunderstorms before 3am. Seas around 1 ft.
Saturday
High : 87ºF
Variable winds 5 kt or less. A chance of showers and thunderstorms, mainly after 10am. Seas around 1 ft.
Saturday Night
Low : 82ºF
Variable winds 5 kt or less. A chance of showers and thunderstorms, mainly after 1am. Seas around 1 ft.
Sunday
High : 87ºF
Variable winds 5 kt or less. Showers likely and possibly a thunderstorm. Seas around 1 ft.
Sunday Night
Low : 81ºF
Variable winds 5 kt or less. A chance of showers and thunderstorms, mainly after 1am. Seas around 1 ft.
Monday
High : 87ºF
Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Seas around 1 ft.
Monday Night
Low : 82ºF
Variable winds 5 kt or less. A chance of showers and thunderstorms, mainly after 1am. Seas around 1 ft.
Tuesday
High : 86ºF
S wind 5 to 10 kt. Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Seas around 1 ft.
Tuesday Night
Low : 82ºF
S wind around 10 kt. A chance of showers and thunderstorms. Seas around 1 ft.

NOAA Buoy Data Near Grand Isle, LA See Map

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    Wind Speed Forecast for Grand Isle, LA

    SaturdaySunday
    Wind Speed (MPH) 98101086757866
    3am7am11am3pm7pm11pm3am7am11am3pm7pm11pm
    MPH 98101086757866
    DIR SSSWSSWSSWSSWSSSWSSWSSSWSSWSSW

    Current Weather Conditions In Grand Isle, LA

    As Of: 29 minutes ago

    • 83ºF
    • 92ºF
    • 9mph
    • 0º (S)
    • 9mph
    • Partly Cloudy
    • 10mi
    • 30.01"
    • 81%
    • 0ºF

    The weather right now in Grand Isle, LA is Partly Cloudy. The current temperature is 83°F, and the expected high and low for today, Saturday, June 14, 2025, are -° high temperature and 82°F low temperature. The wind is currently blowing at 9 miles per hour, and coming from the South. The wind is gusting to 9 mph. With the wind and the atmosphere the temperature feels like 92° Fahrenheit. Expected precipitation is 13 percent, with current humidity at 81 percent, and air pressure at 30.01 in. Visibility is 10 nautical miles. There are no current weather alert(s).