Southwest Pass, Mississippi River, LA Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Fri
Jun 19
Partly Cloudy
Close Hourly
-º / 81º 15% SSW 12 mph 84%
4pm Partly Cloudy 86º 3% SSW 10 mph 80%
5pm Partly Cloudy 85º 5% SSW 11 mph 81%
6pm Partly Cloudy 85º 6% SSW 12 mph 81%
7pm Partly Cloudy 84º 5% SSW 12 mph 85%
8pm Partly Cloudy 83º 3% SSW 12 mph 87%
9pm Partly Cloudy 82º 3% SSW 12 mph 86%
10pm Partly Cloudy 83º 6% SSW 11 mph 85%
11pm Mostly Cloudy 82º 10% S 10 mph 85%
Sat
Jun 20
Mostly Cloudy
View Hourly
84º / 80º 20% SSW 12 mph 81%
12am Partly Cloudy 82º 9% S 9 mph 85%
1am Mostly Cloudy 82º 16% S 11 mph 86%
2am Mostly Cloudy 82º 10% S 11 mph 85%
3am Mostly Cloudy 82º 10% S 12 mph 86%
4am Mostly Cloudy 82º 11% S 12 mph 87%
5am Mostly Cloudy 82º 10% S 11 mph 86%
6am Mostly Cloudy 82º 7% S 11 mph 86%
7am Partly Cloudy 82º 7% S 10 mph 85%
8am Partly Cloudy 83º 10% SSW 11 mph 83%
9am Mostly Cloudy 84º 8% SSW 12 mph 81%
10am Mostly Cloudy 84º 13% SSW 12 mph 82%
11am Mostly Cloudy 84º 6% SSW 10 mph 82%
12pm Mostly Cloudy 84º 6% SSW 10 mph 79%
1pm Mostly Cloudy 84º 16% SSW 9 mph 80%
2pm Partly Cloudy 84º 18% SSW 10 mph 79%
3pm Mostly Cloudy 84º 21% SSW 9 mph 81%
4pm Mostly Cloudy 83º 20% SSW 9 mph 81%
5pm Cloudy 83º 13% SSW 10 mph 80%
6pm Cloudy 84º 8% SSW 10 mph 81%
7pm Cloudy 83º 8% S 10 mph 80%
8pm Cloudy 82º 9% S 9 mph 82%
9pm Cloudy 82º 14% S 10 mph 84%
10pm Mostly Cloudy 82º 23% S 9 mph 83%
11pm Mostly Cloudy 81º 23% S 10 mph 84%
Sun
Jun 21
Mostly Cloudy
View Hourly
85º / 81º 17% SSW 13 mph 80%
12am Mostly Cloudy 81º 10% S 10 mph 84%
1am Mostly Cloudy 81º 10% S 12 mph 83%
2am Mostly Cloudy 82º 10% S 14 mph 83%
3am Few Showers 82º 31% S 14 mph 82%
4am Cloudy 81º 20% S 14 mph 85%
5am Mostly Cloudy 82º 15% S 14 mph 84%
6am Mostly Cloudy 82º 15% SSW 13 mph 84%
7am Cloudy 82º 16% SSW 13 mph 84%
8am Cloudy 83º 12% SSW 13 mph 82%
9am Cloudy 84º 17% SSW 13 mph 80%
10am Cloudy 84º 16% SSW 12 mph 81%
11am Cloudy 84º 9% S 13 mph 82%
12pm Mostly Cloudy 84º 9% SSW 13 mph 77%
1pm Mostly Cloudy 84º 11% SSW 12 mph 80%
2pm Mostly Cloudy 84º 12% SSW 12 mph 79%
3pm Mostly Cloudy 85º 8% SSW 13 mph 79%
Mon
Jun 22
Partly Cloudy 86º / 81º 11% SSW 14 mph 78%
Tue
Jun 23
Partly Cloudy 85º / 81º 5% WSW 10 mph 76%
Wed
Jun 24
Partly Cloudy 85º / 80º 17% W 11 mph 75%
Thu
Jun 25
Partly Cloudy 85º / 81º 24% W 9 mph 73%
Fri
Jun 26
Mostly Sunny 86º / 82º 17% SW 8 mph 71%

Weather Radar for Southwest Pass, Mississippi River, LA See Radar

* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Southwest Pass, Mississippi River, LA

Juneteenth
High : 88ºF
SSW wind around 10 kt. A slight chance of showers after 3pm. Seas around 3 ft.
Tonight
Low : 82ºF
S wind around 10 kt. Mostly cloudy. Seas around 3 ft.
Saturday
High : 87ºF
S wind around 10 kt. Mostly sunny. Seas 2 to 3 ft.
Saturday Night
Low : 82ºF
S wind 10 to 15 kt. Mostly cloudy. Seas 2 to 3 ft.
Sunday
High : 88ºF
S wind around 10 kt. Mostly sunny. Seas around 2 ft.
Sunday Night
Low : 82ºF
S wind around 15 kt. Partly cloudy. Seas 2 to 3 ft.
Monday
High : 88ºF
SSW wind 10 to 15 kt. Mostly sunny. Seas 2 to 3 ft.
Monday Night
Low : 82ºF
SSW wind around 10 kt. Partly cloudy. Seas around 2 ft.
Tuesday
High : 87ºF
Variable winds 5 kt or less. Mostly sunny. Seas 1 to 2 ft.

NOAA Buoy Data Near Southwest Pass, Mississippi River, LA See Map

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    Wind Speed Forecast for Southwest Pass, Mississippi River, LA

    FridaySaturdaySunday
    Wind Speed (MPH) 101291211109910141313
    9pm1am5am9am1pm5pm9pm1am5am9am1pm5pm
    MPH 101291211109910141313
    DIR SSWSSWSSSSWSSWSSWSSSSSWSSW

    Current Weather Conditions In Southwest Pass, Mississippi River, LA

    As Of: 39 minutes ago

    • 86ºF
    • 98ºF
    • 10mph
    • 0º (SSW)
    • 10mph
    • Partly Cloudy
    • 10mi
    • 29.97"
    • 80%
    • 0ºF

    The weather right now in Southwest Pass, Mississippi River, LA is Partly Cloudy. The current temperature is 86°F, and the expected high and low for today, Friday, June 19, 2026, are -° high temperature and 81°F low temperature. The wind is currently blowing at 10 miles per hour, and coming from the South Southwest. The wind is gusting to 10 mph. With the wind and the atmosphere the temperature feels like 98° Fahrenheit. Expected precipitation is 3 percent, with current humidity at 80 percent, and air pressure at 29.97 in. Visibility is 10 nautical miles. There are no current weather alert(s).