Observed 1:55 PM CDT at KGAO

Grand Isle, LA weather

Sunny and 79°26°.

Forecasts agree

Now 79°26°

Sunny

Wind: 13 mph21 km/hgusts 18 mph29 km/h; From the east-northeast. 1321–20 mph32 km/h through 3 AM
Dew point: 55°13°; A little sticky
UV index: 4Moderate; Was high 12–3 PM · peak 6
Pressure: 30.22 inHg1023 hPa; Falling · −0.05 inHg−1.7 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

About the same as this time yesterday (81°27° then, 79°26° now)

Good hours for

Low 69°21° tomorrow at 6 AM

This afternoonNear 75°24° · Clear
TonightNear 72°22° · Clear
Tomorrow morningUp to 73°23° by 10 AM · Partly cloudy
Tomorrow afternoonNear 74°23° · Mostly cloudy
Tomorrow nightNear 72°22° · Partly cloudy
Monday morningNear 72°22° · Mostly cloudy
Monday afternoonNear 74°23° · Mostly cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 3p	Sunny	75°24° (likely 73°23° to 75°24°)	75°24°	0%	15 mph24 km/h from E, gusts 23 mph37 km/h	54%	8%	4
Sat 4p	Sunny	75°24° (likely 73°23° to 75°24°)	75°24°	0%	20 mph32 km/h from NE, gusts 23 mph36 km/h	52%	5%	2
Sat 5p	Sunny	74°23° (likely 72°22° to 74°23°)	74°23°	0%	15 mph24 km/h from NE, gusts 22 mph36 km/h	51%	0%	1
Sat 6p	Clear	73°23° (likely 71°22° to 73°23°)	73°23°	0%	15 mph24 km/h from NE, gusts 21 mph34 km/h	51%	0%	0
Sat 7p	Clear	72°22° (likely 70°21° to 73°23°)	72°22°	0%	15 mph24 km/h from E, gusts 20 mph32 km/h	51%	2%	0
Sat 8p	Clear	71°22° (likely 69°21° to 73°23°)	71°22°	0%	15 mph24 km/h from E, gusts 19 mph31 km/h	53%	2%	0
Sat 9p	Clear	71°22° (likely 69°21° to 73°23°)	71°22°	0%	15 mph24 km/h from E, gusts 19 mph31 km/h	53%	0%	0
Sat 10p	Clear	71°22° (likely 69°21° to 73°23°)	71°22°	0%	15 mph24 km/h from E, gusts 20 mph32 km/h	55%	0%	0
Sat 11p	Clear	70°21° (likely 69°21° to 74°23°)	70°21°	0%	15 mph24 km/h from E, gusts 19 mph31 km/h	59%	2%	0
Sun 12a	Clear	70°21° (likely 70°21° to 74°23°)	70°21°	0%	15 mph24 km/h from E, gusts 18 mph29 km/h	59%	7%	0
Sun 1a	Mostly clear	70°21° (likely 70°21° to 74°23°)	70°21°	0%	15 mph24 km/h from E, gusts 18 mph30 km/h	61%	25%	0
Sun 2a	Clear	70°21° (likely 70°21° to 74°23°)	70°21°	0%	15 mph24 km/h from E, gusts 18 mph30 km/h	61%	30%	0
Sun 3a	Mostly clear	70°21° (likely 69°21° to 74°23°)	70°21°	0%	15 mph24 km/h from E, gusts 18 mph29 km/h	61%	39%	0
Sun 4a	Clear	70°21° (likely 69°21° to 74°23°)	70°21°	0%	15 mph24 km/h from E, gusts 18 mph29 km/h	61%	31%	0
Sun 5a	Mostly clear	70°21° (likely 69°21° to 73°23°)	70°21°	0%	15 mph24 km/h from E, gusts 19 mph31 km/h	63%	45%	0
Sun 6a	Mostly clear	69°21° (likely 69°21° to 74°23°)	69°21°	0%	15 mph24 km/h from NE, gusts 20 mph32 km/h	70%	32%	0
Sun 7a	Partly sunny	69°21° (likely 69°21° to 74°23°)	69°21°	0%	20 mph32 km/h from NE, gusts 19 mph31 km/h	73%	23%	0
Sun 8a	Partly sunny	70°21° (likely 69°21° to 74°23°)	70°21°	0%	20 mph32 km/h from NE, gusts 18 mph30 km/h	73%	22%	0
Sun 9a	Partly sunny	72°22° (likely 70°21° to 74°23°)	72°22°	0%	20 mph32 km/h from NE, gusts 19 mph30 km/h	71%	26%	1
Sun 10a	Partly sunny	73°23° (likely 71°22° to 74°23°)	73°23°	0%	20 mph32 km/h from NE, gusts 19 mph31 km/h	71%	37%	3
Sun 11a	Partly sunny	73°23° (likely 72°22° to 74°23°)	73°23°	0%	20 mph32 km/h from NE, gusts 20 mph31 km/h	73%	56%	4
Sun 12p	Partly sunny	74°23° (likely 72°22° to 74°23°)	74°23°	0%	20 mph32 km/h from NE, gusts 21 mph34 km/h	74%	59%	4
Sun 1p	Partly sunny	74°23° (likely 72°22° to 74°23°)	74°23°	0%	20 mph32 km/h from NE, gusts 22 mph35 km/h	74%	59%	4
Sun 2p	Partly sunny	74°23° (likely 72°22° to 74°23°)	74°23°	0%	20 mph32 km/h from NE, gusts 22 mph36 km/h	74%	61%	4
Sun 3p	Mostly sunny	74°23° (likely 72°22° to 74°23°)	74°23°	0%	20 mph32 km/h from NE, gusts 22 mph36 km/h	71%	59%	5
Sun 4p	Mostly sunny	74°23° (likely 72°22° to 74°23°)	74°23°	0%	20 mph32 km/h from NE, gusts 22 mph35 km/h	69%	62%	4
Sun 5p	Partly sunny	73°23° (likely 72°22° to 73°23°)	73°23°	0%	20 mph32 km/h from NE, gusts 21 mph34 km/h	68%	62%	2
Sun 6p	Mostly clear	73°23° (likely 71°22° to 73°23°)	73°23°	0%	20 mph32 km/h from NE, gusts 21 mph33 km/h	66%	32%	1
Sun 7p	Mostly clear	72°22° (likely 71°22° to 72°22°)	72°22°	0%	15 mph24 km/h from NE, gusts 20 mph32 km/h	66%	26%	0
Sun 8p	Partly cloudy	71°22° (likely 70°21° to 73°23°)	71°22°	0%	15 mph24 km/h from NE, gusts 20 mph32 km/h	68%	19%	0
Sun 9p	Mostly clear	71°22° (likely 70°21° to 73°23°)	71°22°	0%	15 mph24 km/h from NE, gusts 20 mph32 km/h	68%	39%	0
Sun 10p	Clear	71°22° (likely 70°21° to 74°23°)	71°22°	0%	15 mph24 km/h from NE, gusts 19 mph31 km/h	68%	35%	0
Sun 11p	Partly cloudy	71°22° (likely 71°22° to 74°23°)	71°22°	0%	15 mph24 km/h from NE, gusts 19 mph30 km/h	68%	36%	0
Mon 12a	Partly cloudy	70°21° (likely 70°21° to 74°23°)	70°21°	0%	20 mph32 km/h from NE, gusts 19 mph30 km/h	68%	67%	0
Mon 1a	Cloudy	70°21° (likely 70°21° to 74°23°)	70°21°	0%	20 mph32 km/h from NE, gusts 18 mph29 km/h	68%	81%	0
Mon 2a	Partly cloudy	70°21° (likely 70°21° to 74°23°)	70°21°	0%	20 mph32 km/h from NE, gusts 19 mph30 km/h	68%	76%	0
Mon 3a	Cloudy	70°21° (likely 70°21° to 74°23°)	70°21°	0%	20 mph32 km/h from NE, gusts 19 mph30 km/h	68%	71%	0
Mon 4a	Cloudy	70°21° (likely 70°21° to 74°23°)	70°21°	0%	15 mph24 km/h from NE, gusts 20 mph32 km/h	68%	66%	0
Mon 5a	Mostly cloudy	70°21° (likely 69°21° to 74°23°)	70°21°	0%	15 mph24 km/h from NE, gusts 19 mph31 km/h	68%	56%	0
Mon 6a	Cloudy	70°21° (likely 69°21° to 74°23°)	70°21°	0%	20 mph32 km/h from NE, gusts 18 mph29 km/h	71%	72%	0
Mon 7a	Cloudy	70°21° (likely 69°21° to 74°23°)	70°21°	0%	20 mph32 km/h from NE, gusts 17 mph28 km/h	71%	77%	0
Mon 8a	Cloudy	71°22° (likely 69°21° to 74°23°)	71°22°	0%	20 mph32 km/h from NE, gusts 16 mph25 km/h	71%	76%	0
Mon 9a	Cloudy	72°22° (likely 70°21° to 73°23°)	72°22°	0%	20 mph32 km/h from NE, gusts 15 mph25 km/h	68%	74%	1
Mon 10a	Partly sunny	73°23° (likely 71°22° to 73°23°)	73°23°	0%	20 mph32 km/h from NE, gusts 17 mph27 km/h	68%	72%	2
Mon 11a	Partly sunny	73°23° (likely 72°22° to 74°23°)	73°23°	0%	20 mph32 km/h from NE, gusts 17 mph27 km/h	68%	66%	4
Mon 12p	Cloudy	74°23° (likely 72°22° to 75°24°)	74°23°	0%	20 mph32 km/h from NE, gusts 17 mph27 km/h	69%	77%	4
Mon 1p	Cloudy	74°23° (likely 72°22° to 76°24°)	74°23°	0%	20 mph32 km/h from NE, gusts 19 mph30 km/h	69%	79%	6
Mon 2p	Partly sunny	74°23° (likely 72°22° to 77°25°)	74°23°	0%	20 mph32 km/h from NE, gusts 19 mph31 km/h	69%	87%	6

Days ahead

Tap a day for its hours and the official wording.

Today, Oct 24. Sunny. High 75°24°, low 69°21°. Dry. Forecasts agree.
1. Afternoon
  noon–6 PM
  Sunny, 75°24°
  Dry
2. Evening
  6 PM–midnight
  Clear, 71°22°
  Dry
3. Overnight
  midnight–6 AM
  Mostly clear, 70°21°
  Dry
Official NWS forecast
Today: Sunny, with a high near 75. Northeast wind 15 to 20 mph.
Tonight: Mostly clear, with a low around 69. Northeast wind around 15 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
75°24°–76°24°
Low, likely
69°21°–73°23°
Wind
21 mph34 km/h, gusts 28 mph44 km/h
UV peak
6
Tomorrow, Oct 25. Cloudy. High 75°24°, low 69°21°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Partly sunny, 70°21°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 74°23°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 71°22°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 70°21°
  Dry
Official NWS forecast
Day: Mostly sunny. High near 75, with temperatures falling to around 73 in the afternoon. Northeast wind 15 to 20 mph.
Night: Partly cloudy, with a low around 69. Northeast wind 15 to 20 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
74°23°–75°24°
Low, likely
68°20°–72°22°
Wind
22 mph35 km/h, gusts 29 mph47 km/h
UV peak
5
Monday, Oct 26. Mostly cloudy. High 75°24°, low 70°21°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 71°22°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 74°23°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 71°22°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 72°22°
  Dry
Official NWS forecast
Day: Partly sunny, with a high near 75. Northeast wind 15 to 20 mph.
Night: Partly cloudy, with a low around 70. East wind around 15 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
74°23°–76°24°
Low, likely
68°20°–72°22°
Wind
21 mph33 km/h, gusts 28 mph45 km/h
UV peak
6
Tuesday, Oct 27. Partly sunny. High 76°24°, low 70°21°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 72°22°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 76°25°
  Dry
3. Evening
  6 PM–midnight
  Clear, 72°22°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 71°22°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 76. Northeast wind around 15 mph.
Night: Mostly cloudy, with a low around 70. East wind 10 to 15 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
75°24°–78°26°
Low, likely
68°20°–74°23°
Wind
19 mph30 km/h, gusts 24 mph38 km/h
UV peak
5
Wednesday, Oct 28. Partly sunny. High 75°24°, low 69°21°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 71°22°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 76°24°
  Dry
3. Evening
  6 PM–midnight
  Clear, 73°23°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 70°21°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 75. East wind around 15 mph.
Night: Mostly clear, with a low around 69. East wind around 15 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
75°24°–78°26°
Low, likely
68°20°–73°23°
Wind
18 mph29 km/h, gusts 24 mph38 km/h
UV peak
6
Thursday, Oct 29. Mostly sunny. High 74°23°, low 69°21°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 70°21°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 76°24°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 72°22°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 71°22°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 74. Northeast wind around 15 mph.
Night: Mostly clear, with a low around 69. Northeast wind around 15 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
74°23°–78°26°
Low, likely
66°19°–73°23°
Wind
18 mph29 km/h
UV peak
5
Friday, Oct 30. Partly sunny. High 75°24°, low 70°21°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 72°22°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 77°25°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 74°23°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 73°23°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 75. East wind around 15 mph.
Night: Partly cloudy, with a low around 70. East wind around 15 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
75°24°–79°26°
Low, likely
68°20°–74°23°
Wind
19 mph30 km/h, gusts 25 mph41 km/h
UV peak
5
Saturday, Oct 31. Partly sunny. High 78°26°, low 74°23°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 75°24°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 78°26°
  Dry
3. Evening
  6 PM–midnight
  Clear, 75°24°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 74°23°
  Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
77°25°–80°27°
Low, likely
68°20°–76°24°
Wind
19 mph30 km/h, gusts 26 mph42 km/h
UV peak
6
Sunday, Nov 1. Sunny. High 78°26°, low 74°23°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 74°24°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 78°25°
  Dry
3. Evening
  6 PM–midnight
  Clear, 74°24°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 75°24°
  Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
76°24°–80°27°
Low, likely
68°20°–76°24°
Wind
13 mph21 km/h
UV peak
6
Monday, Nov 2. Drizzle. High 78°26°, low 69°21°. Rain 0.12 in3 mm, 10% chance. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 76°24°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 77°25°
  Dry
3. Evening
  6 PM–midnight
  Clear, 70°21°
  Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
76°24°–81°27°
Low, likely
61°16°–76°24°
Wind
29 mph47 km/h
UV peak
5

10 days15 days30 days

The outlook

Today
Dry, high 75°, low 69°.
Tomorrow
Dry, high 75°, low 69°.
Monday
Dry, high 75°, low 70°.
Rest of week
Mostly dry, highs 74–78°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (LIX) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Barataria Bay and Waterway at Caminada Pass

1.7 mi

Level: 3.1 ft

Reading from Sat 2 PM · NWS gauge page

Barataria Bay and Waterway at Barataria Pass near Grand Isle

6.5 mi

Level: 8.1 ft

Reading from Sat 1:15 PM · NWS gauge page

Barataria Bay and Waterway near Grand Terre Island

9.4 mi

Level: 1.2 ft

Reading from Sat 2 PM · NWS gauge page

Barataria Bay and Waterway at Hackberry Bay near Grand Isle

13 mi

Level: 4.0 ft

Reading from Sat 1:15 PM · NWS gauge page

Sun & moon

Sun

Daylight: 11 h 13 min; Losing 1 min 38 s a day; shortest Dec 21, 57 min less
Golden hour: 5:48–6:35 PM; Morning 6:52–7:39 AM
Blue hour: 6:35–6:45 PM; Morning 6:43–6:52 AM; first light 6:43 AM

Stars tonight? Fair

Mostly clear 6:45 PM–2 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 5:27 AM · rises 5:16 PM
Full moon: Oct 25
New moon: Nov 9

Looking southeast from Grand Isle. Open water to the horizon.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.