Weather forecast for 10 daysGrand Isle, LA
Weather forecast for the weekend
Sunday Oct 18, 2026
- 72°F
- 68°F
Partly Cloudy / Wind
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 22mphENE 62°
- Humidity: 69%
- UV index: 7
- Sunrise: 7:03 am CDT
- Sunset: 6:26 pm CDT
- details ▼
On Sunday, October 18, occasional gusty winds will sweep through a partly cloudy sky.
The highest daytime temperature will reach an agreeable 71.6°F, creating a slight contrast with the predicted nighttime low of a delightful 68°F.
Today, the colder forecast high of 71.6°F matches November's pattern over October's.
Sunrise was at 7:03 am and sunset will be at 6:26 pm; the daylight will last for 11h and 23min.
The highest daytime temperature will reach an agreeable 71.6°F, creating a slight contrast with the predicted nighttime low of a delightful 68°F.
Today, the colder forecast high of 71.6°F matches November's pattern over October's.
Sunrise was at 7:03 am and sunset will be at 6:26 pm; the daylight will last for 11h and 23min.
10-day overview
Daily temperatures
Maximum temperature: 77°C.
Coldest day: today 72°C.
Coldest day: today 72°C.
Chance of precipitation
Highest chance: Tuesday 27.10. 18%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 72°F
- 68°F
Partly Cloudy / Wind
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 22mphENE 62°
- Humidity: 69%
- UV index: 7
- Sunrise: 7:03 am CDT
- Sunset: 6:26 pm CDT
- details ▼
- Monday
- Oct 19, 2026
- 73°F
- 70°F
Partly Cloudy / Wind
- Precip. probability: 17%
- Precipitation: 0"
- Wind: 20mphNE 54°
- Humidity: 71%
- UV index: 7
- Sunrise: 7:03 am CDT
- Sunset: 6:25 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 75°F
- 68°F
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 17mphENE 58°
- Humidity: 67%
- UV index: 7
- Sunrise: 7:04 am CDT
- Sunset: 6:24 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 77°F
- 68°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 14mphNE 41°
- Humidity: 56%
- UV index: 7
- Sunrise: 7:05 am CDT
- Sunset: 6:23 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 77°F
- 68°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 11mphNNE 29°
- Humidity: 54%
- UV index: 7
- Sunrise: 7:05 am CDT
- Sunset: 6:22 pm CDT
- details ▼
- Friday
- Oct 23, 2026
- 77°F
- 72°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 11mphNE 42°
- Humidity: 55%
- UV index: 7
- Sunrise: 7:06 am CDT
- Sunset: 6:21 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 77°F
- 68°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 18mphENE 68°
- Humidity: 59%
- UV index: 7
- Sunrise: 7:07 am CDT
- Sunset: 6:20 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 75°F
- 68°F
Mostly Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 19mphENE 59°
- Humidity: 63%
- UV index: 7
- Sunrise: 7:07 am CDT
- Sunset: 6:20 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 75°F
- 68°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 16mphENE 59°
- Humidity: 62%
- UV index: 7
- Sunrise: 7:08 am CDT
- Sunset: 6:19 pm CDT
- details ▼
- Tuesday
- Oct 27, 2026
- 77°F
- 70°F
Partly Cloudy
- Precip. probability: 18%
- Precipitation: 0"
- Wind: 14mphENE 58°
- Humidity: 59%
- UV index: 6
- Sunrise: 7:09 am CDT
- Sunset: 6:18 pm CDT
- details ▼
Ten-day trends indicate that a combination of cloudy and dry and sunny weather is expected.
Rain is not forecasted in Grand Isle in the upcoming period.
Highs will stay within a very narrow margin during the next few days. Highs will range from 71.6°F to 77°F, while the overnight low will be also nearly unchanged, as the minimum temperature is expected to range between 68°F and 71.6°F.
Wednesday through Saturday and next Tuesday, with the highest temperature of 77°F, will be the warmest days in Grand Isle, Louisiana; today is the coldest day, with a maximum temperature of 71.6°F.
Rain is not forecasted in Grand Isle in the upcoming period.
Highs will stay within a very narrow margin during the next few days. Highs will range from 71.6°F to 77°F, while the overnight low will be also nearly unchanged, as the minimum temperature is expected to range between 68°F and 71.6°F.
Wednesday through Saturday and next Tuesday, with the highest temperature of 77°F, will be the warmest days in Grand Isle, Louisiana; today is the coldest day, with a maximum temperature of 71.6°F.
Updated: Oct 18, 2026 @ 13:35:26 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
On Sunday, in Grand Isle, patchy clouds and steady winds will continue.
Today, the highest temperature will be 71.6°F, while the lowest temperature will be 68°F.
Today, the highest temperature will be a few degrees lower than the average maximum temperature in October. The lowest temperature today will be in line with the average low temperature.
Today, the highest temperature will be a few degrees lower than the average maximum temperature in October. The lowest temperature today will be in line with the average low temperature.
On Sunday, in Grand Isle, sunrise was at 7:03 am and sunset will be at 6:26 pm (CDT).
In Grand Isle, Louisiana, the length of the day today will be 11h and 23min.
