Weather forecast for today
Grand Isle, LA

Weather forecast for today

Tuesday, Jun 24.

Heavy Thunderstorms
6:00 am

8:04 pm
CDT
Heavy Thunderstorms
84°F / 82°F
  • Wind: 14mph ESE
  • Humidity: 78%
  • Precip. probability: 99%
  • Precipitation: 0.91"
  • UV index: 8
On Tuesday, in Grand Isle, severe thunderstorms may develop, producing heavy downpours and lightning.
Increased precipitation is predicted for today. The temperature will peak at a warm 84.2°F during the day, slightly dropping to a low of a moderately hot 82.4°F at night.
The maximum heat index, which combines relative humidity and air temperature, is evaluated at a tropical 93.2°F. Note that heat index values are valued for light wind and location in the shade.
The highest temperature is expected to follow the average for June, around 85.5°F.
Sunrise was at 6:00 am and sunset will be at 8:04 pm; the daylight will last for 14h and 4min.

Current condition

Rain
8:16 am CDT
Rain
  • 79°F
  • Feels like: 84°F
  • Wind: 10mph ENE
  • Humidity: 90%
  • Dewpoint: 75°F
  • Pressure: 30.17"Hg
  • Precipitation: 0"
  • Visibility: 7mi
  • UV index: 1
At the moment, in Grand Isle, rain-soaked streets reflect the grey sky.
The temperature is a warm 78.8°F, and the felt air temperature is appraised at a temperate 84.2°F. The current temperature is only a few degrees off the maximum of 84.2°F for the day.

Weather radar - Grand Isle, LA

Doppler radar displays precipitation for the past 2h and forecasts the next 30min

Frequently asked questions

What is the temperature now?
At 8:16 am CDT, the temperature is 78.8°F. Feels-like temperature is 84.2°F.
What is the weather forecast for Grand Isle for today?
On Tuesday, in Grand Isle, powerful thunderstorms will bring heavy rain and gusty winds.
Will it rain today?
Yes. With a probability of 99%, increased precipitation of 0.91" is expected in Grand Isle.
What will be the highest temperature today?
Today, the highest temperature will be 84.2°F, while the lowest temperature will be 82.4°F. The maximum heat index, which represents the influence of relative humidity on air temperature, is calculated to be 93.2°F.
The maximum temperature will be in line with the average highest temperature of 85.5°F in June. The lowest temperature will be also in line with the average low of 79.7°F.
When are sunrise and sunset today?
On Tuesday, in Grand Isle, sunrise was at 6:00 am and sunset will be at 8:04 pm (CDT).
How many hours of daylight will Grand Isle have today?
Today, the daylight will last for 14h and 4min.

Hourly weather forecast

9 am
  • 79°F
  • Feels like:
    86°F
Showers
Showers
  • Wind: 12mph E
  • Pressure: 30.15"Hg
  • Humidity: 86%
  • Precip. probability: 38%
  • Precipitation: 0.04"
  • Visibility: 7mi
10 am
  • 79°F
  • Feels like:
    86°F
Showers
Showers
  • Wind: 12mph E
  • Pressure: 30.15"Hg
  • Humidity: 86%
  • Precip. probability: 39%
  • Precipitation: 0.04"
  • Visibility: 7mi
11 am
  • 81°F
  • Feels like:
    88°F
Thunderstorms
Thunderstorms
  • Wind: 14mph E
  • Pressure: 30.15"Hg
  • Humidity: 84%
  • Precip. probability: 88%
  • Precipitation: 0.04"
  • Visibility: 8mi
12 pm
  • 82°F
  • Feels like:
    90°F
Thunderstorms
Thunderstorms
  • Wind: 14mph ESE
  • Pressure: 30.15"Hg
  • Humidity: 81%
  • Precip. probability: 99%
  • Precipitation: 0.12"
  • Visibility: 6mi
1 pm
  • 82°F
  • Feels like:
    90°F
Thunderstorms
Thunderstorms
  • Wind: 14mph ESE
  • Pressure: 30.15"Hg
  • Humidity: 80%
  • Precip. probability: 88%
  • Precipitation: 0.43"
  • Visibility: 6mi
2 pm
  • 82°F
  • Feels like:
    90°F
Thunderstorms
Thunderstorms
  • Wind: 14mph ESE
  • Pressure: 30.15"Hg
  • Humidity: 79%
  • Precip. probability: 83%
  • Precipitation: 0.24"
  • Visibility: 6mi
3 pm
  • 82°F
  • Feels like:
    91°F
Thunderstorms
Thunderstorms
  • Wind: 14mph ESE
  • Pressure: 30.12"Hg
  • Humidity: 77%
  • Precip. probability: 67%
  • Precipitation: 0.04"
  • Visibility: 6mi
4 pm
  • 84°F
  • Feels like:
    93°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 14mph ESE
  • Pressure: 30.12"Hg
  • Humidity: 73%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 10mi
5 pm
  • 84°F
  • Feels like:
    93°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 14mph ESE
  • Pressure: 30.09"Hg
  • Humidity: 73%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 10mi
6 pm
  • 84°F
  • Feels like:
    93°F
Partly Cloudy
Partly Cloudy
  • Wind: 12mph ESE
  • Pressure: 30.09"Hg
  • Humidity: 74%
  • Precip. probability: 17%
  • Precipitation: 0"
  • Visibility: 10mi
7 pm
  • 84°F
  • Feels like:
    91°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 12mph ESE
  • Pressure: 30.09"Hg
  • Humidity: 75%
  • Precip. probability: 19%
  • Precipitation: 0"
  • Visibility: 10mi
8 pm
  • 82°F
  • Feels like:
    91°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 10mph SE
  • Pressure: 30.09"Hg
  • Humidity: 77%
  • Precip. probability: 16%
  • Precipitation: 0"
  • Visibility: 10mi
Sunset: 8:04 pm
9 pm
  • 84°F
  • Feels like:
    91°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph SE
  • Pressure: 30.09"Hg
  • Humidity: 76%
  • Precip. probability: 15%
  • Precipitation: 0"
  • Visibility: 10mi
10 pm
  • 84°F
  • Feels like:
    91°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph ESE
  • Pressure: 30.12"Hg
  • Humidity: 76%
  • Precip. probability: 16%
  • Precipitation: 0"
  • Visibility: 10mi
11 pm
  • 84°F
  • Feels like:
    93°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph SE
  • Pressure: 30.12"Hg
  • Humidity: 74%
  • Precip. probability: 6%
  • Precipitation: 0"
  • Visibility: 10mi
Today, a combination of gloomy, stormy and rain-filled weather is expected.
Rainfall is forecasted from 9 am to 3 pm. With elevated precipitation of 0.43", most rainfall is expected at 1 pm.
The temperature will be between the lowest temperature of 78.8°F and the highest temperature of 84.2°F. The feels-like temperature will vary between a maximum of 93.2°F and a minimum of 86°F. The hottest part of the day will be from 4 pm to 7 pm, and from 9 pm to 11 pm.
The maximum temperature will be close to June's average highest temperature of 85.5°F. The expected low will be also comparable to the average minimum in June, which is 79.7°F.
Updated: Jun 24, 2025 @ 13:16:54 UTC
Published by: Weather U.S. | About Us
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Weather Forecasting & Climate

Grand Isle, Louisiana, USA

  • en: Grand Isle, Louisiana, USA
  • es: Grand Isle, Luisiana, EE.UU.
  • hr: Grand Ajl, Luizijana, SAD
  • sr: Grand Ajl, Luizijana, SAD
  • zh: 格兰德艾尔, 路易斯安那州, 美国
  • Latitude: 29.236617°
  • Longitude: -89.987294°
  • Elevation: 7 ft
  • Current time: 8:16am CDT
  • Sunrise: 6:00 am CDT
  • Sunset: 8:04 pm CDT
  • Timezone: America/Chicago
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