Hourly Weather Forecast - Grand Isle, LA

12 AM
65°F
10%
8mph
S
Partly Cloudy
Humidity
95%
Feels like
65°F
Dew Point
64°F
1 AM
65°F
10%
8mph
S
Partly Cloudy
Humidity
96%
Feels like
65°F
Dew Point
64°F
2 AM
65°F
10%
7mph
S
Partly Cloudy
Humidity
97%
Feels like
65°F
Dew Point
64°F
3 AM
64°F
10%
6mph
S
Partly Cloudy
Humidity
98%
Feels like
64°F
Dew Point
64°F
4 AM
64°F
10%
6mph
S
Foggy
Humidity
99%
Feels like
64°F
Dew Point
64°F
5 AM
64°F
10%
5mph
S
Foggy
Humidity
99%
Feels like
64°F
Dew Point
64°F
6 AM
64°F
10%
5mph
S
Mostly Cloudy
Humidity
98%
Feels like
64°F
Dew Point
64°F
6:49 AM
7 AM
65°F
10%
5mph
S
Mostly Cloudy
Humidity
96%
Feels like
65°F
Dew Point
64°F
8 AM
67°F
10%
6mph
SSE
Mostly Cloudy
Humidity
93%
Feels like
67°F
Dew Point
65°F
9 AM
68°F
20%
6mph
SSE
Mostly Cloudy
Humidity
91%
Feels like
68°F
Dew Point
65°F
10 AM
69°F
30%
7mph
SSE
30% Chance Rain Showers
Humidity
88%
Feels like
69°F
Dew Point
65°F
11 AM
69°F
30%
8mph
SSE
30% Chance Rain Showers
Humidity
87%
Feels like
69°F
Dew Point
65°F
12 PM
69°F
40%
8mph
SSE
40% Chance Rain Showers
Humidity
86%
Feels like
69°F
Dew Point
65°F
1 PM
69°F
30%
8mph
SSE
30% Chance Rain Showers
Humidity
85%
Feels like
69°F
Dew Point
65°F
2 PM
70°F
30%
8mph
SSE
30% Chance Rain Showers
Humidity
84%
Feels like
70°F
Dew Point
64°F
3 PM
69°F
30%
7mph
SSE
30% Chance Rain Showers
Humidity
84%
Feels like
69°F
Dew Point
64°F
4 PM
68°F
30%
6mph
SSE
30% Chance Rain Showers
Humidity
88%
Feels like
68°F
Dew Point
64°F
5 PM
67°F
30%
6mph
SSE
30% Chance Rain Showers
Humidity
92%
Feels like
67°F
Dew Point
64°F
5:06 PM
6 PM
65°F
30%
6mph
SE
30% Chance Rain Showers
Humidity
96%
Feels like
65°F
Dew Point
64°F
7 PM
65°F
40%
5mph
SE
40% Chance Rain Showers
Humidity
97%
Feels like
65°F
Dew Point
64°F
8 PM
65°F
30%
5mph
SE
30% Chance Rain Showers
Humidity
97%
Feels like
65°F
Dew Point
64°F
9 PM
65°F
30%
6mph
SE
30% Chance Rain Showers
Humidity
98%
Feels like
65°F
Dew Point
64°F

Rainfall Totals Through Wednesday A.M.

Heavy Rain Returns to Deluge Pacific Northwest

Another atmospheric river will hit the Pacific Northwest with heavy rain and high winds.

Monday's Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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