Grand Isle, LA Weather Forecast and Current Conditions (70358)
Feels Like 83°F
Current Weather
Feels Like 83°F
Forecast at a Glance
This Date in Weather History
1970 - A lightning bolt struck a group of football players at Gibbs High School in Saint Petersburg FL, killing two persons and injuring 22 others. All the thirty-eight players and four coaches were knocked off their feet.
More on this and other weather history
Grand Isle 7 Day Weather Forecast Details
Sunday Sep 7
Day: Sunny. High near 87, with temperatures falling to around 85 in the afternoon. Northeast wind 10 to 15 mph.
Night: Mostly clear. Low around 77, with temperatures rising to around 79 overnight. Northeast wind 10 to 20 mph.
Monday Sep 8
Day: Sunny, with a high near 85. Northeast wind 10 to 20 mph.
Night: A slight chance of rain showers between 1am and 4am, then a slight chance of showers and thunderstorms. Mostly clear, with a low around 78. Northeast wind around 10 mph. Chance of precipitation is 20%.
Tuesday Sep 9
Day: A chance of showers and thunderstorms. Sunny, with a high near 86. Northeast wind 10 to 15 mph. Chance of precipitation is 40%.
Night: A chance of showers and thunderstorms. Mostly clear, with a low around 80. East wind around 15 mph. Chance of precipitation is 40%.
Wednesday Sep 10
Day: A chance of showers and thunderstorms. Sunny, with a high near 86. Northeast wind around 15 mph. Chance of precipitation is 40%.
Night: A chance of showers and thunderstorms. Mostly clear, with a low around 81. East wind 10 to 15 mph.
Thursday Sep 11
Day: A slight chance of showers and thunderstorms. Sunny, with a high near 87. Northeast wind around 15 mph.
Night: A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 81. East wind 5 to 15 mph.
Friday Sep 12
Day: Sunny, with a high near 87. Northeast wind 10 to 15 mph.
Night: Mostly clear, with a low around 80. East wind around 10 mph.
Saturday Sep 13
Day: Sunny, with a high near 86. East wind 10 to 15 mph.
Night: Mostly clear, with a low around 80. East wind 10 to 15 mph.
Sun & Moon Monthly
Sunrise 6:42 AM
Sunset 7:16 PM
Last Light 7:40 PM
Moonset 6:23 AM
Close Tide Stations
Bayou Rigaud, Grand Isle
(2.4 miles away)
EAST POINT, GRAND ISLE
(2.6 miles away)
Caminada Pass (bridge)
(3.7 miles away)
Weather Near Grand Isle
Contiguous United States Extremes
Sat's High Temperature
110 at Death Valley, CA and Stovepipe Wells, CA and 16 Miles Southwest Of Tecopa, CA
Sun's Low Temperature
28 at 2 Miles East Southeast Of Hazen, ND
Weather Folklore
Wells gurgle and yield muddy water before a storm.
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About Grand Isle, Louisiana
Grand Isle is a town in Jefferson Parish in the U.S. state of Louisiana, located on a barrier island of the same name in the Gulf of Mexico. The island is at the mouth of Barataria Bay where it meets the Gulf. The town of Grand Isle is statistically part of the New Orleans−Metairie−Kenner metropolitan statistical area, though it is not connected to New Orleans' continuous urbanized area.
The population was 1,005 as of the 2020 U.S. census, down from 1,296 from the previous 2010 U.S. census.
Grand Isle's main street is the seaside start of Louisiana Highway 1 (LA 1), which stretches 436.2 miles (702.0 km) away to the northwest corner of the state, ending near Shreveport. LA 1's automobile causeway at the west end of the island is the only land access to or from Grand Isle. Direct access to Grand Isle's seat of parish government is 95 miles (153 km) away in the more suburban part of Jefferson Parish.
Grand Isle is also the name of a former sulphur mine located 7 miles of the coast of the island, which was completed in 1960 as the first ever offshore Frasch sulphur mine.
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