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

Day Sky High / Low Precip Wind Humidity
Wed
May 21 		Mostly Cloudy
Close Hourly 		81º / 76º 15% W 9 mph 87%
7am Partly Cloudy 77º 5% WSW 8 mph 97%
8am Partly Cloudy 78º 4% WSW 8 mph 94%
9am Mostly Cloudy 79º 5% WSW 8 mph 92%
10am Mostly Cloudy 80º 5% WSW 8 mph 87%
11am Mostly Cloudy 80º 5% W 8 mph 87%
12pm Mostly Cloudy 80º 5% W 8 mph 88%
1pm Cloudy 80º 15% W 9 mph 87%
2pm Cloudy 80º 16% W 8 mph 87%
3pm Mostly Cloudy 80º 15% WNW 8 mph 87%
4pm Mostly Cloudy 80º 15% NNW 7 mph 84%
5pm Cloudy 80º 15% NNE 7 mph 82%
6pm Mostly Cloudy 80º 10% NNE 7 mph 82%
7pm Cloudy 79º 7% NE 6 mph 83%
8pm Mostly Cloudy 79º 7% NE 6 mph 84%
9pm Mostly Cloudy 79º 8% ENE 6 mph 84%
10pm Cloudy 79º 14% E 7 mph 82%
11pm Cloudy 79º 10% ESE 7 mph 82%
Thu
May 22 		AM Clouds/PM Sun
View Hourly 		80º / 77º 24% E 7 mph 83%
12am Cloudy 79º 9% ESE 6 mph 82%
1am Cloudy 79º 17% SE 6 mph 82%
2am Cloudy 79º 18% SE 6 mph 82%
3am Cloudy 79º 18% SE 4 mph 83%
4am Cloudy 79º 21% SSE 4 mph 84%
5am Cloudy 78º 16% SE 4 mph 86%
6am Cloudy 78º 18% E 3 mph 86%
7am Cloudy 77º 14% NNE 3 mph 88%
8am Cloudy 78º 24% ENE 3 mph 87%
9am Cloudy 79º 24% ENE 5 mph 83%
10am Cloudy 78º 24% E 5 mph 85%
11am Cloudy 78º 20% E 6 mph 85%
12pm Cloudy 78º 17% E 6 mph 85%
1pm Cloudy 78º 21% ESE 6 mph 84%
2pm Mostly Cloudy 78º 24% ESE 6 mph 83%
3pm Mostly Cloudy 79º 24% ESE 6 mph 83%
4pm Mostly Cloudy 79º 12% SE 7 mph 81%
5pm Mostly Cloudy 80º 13% SE 7 mph 79%
6pm Partly Cloudy 80º 11% SE 7 mph 78%
7pm Partly Cloudy 79º 8% SE 7 mph 79%
8pm Partly Cloudy 79º 7% SE 7 mph 81%
9pm Partly Cloudy 79º 9% SE 7 mph 80%
10pm Mostly Cloudy 80º 11% SE 7 mph 79%
11pm Partly Cloudy 80º 18% SSE 6 mph 80%
Fri
May 23 		Partly Cloudy
View Hourly 		81º / 78º 18% ESE 7 mph 80%
12am Partly Cloudy 79º 15% SSE 5 mph 81%
1am Mostly Clear 79º 10% S 6 mph 81%
2am Mostly Clear 79º 10% S 6 mph 81%
3am Partly Cloudy 78º 7% SSW 6 mph 82%
4am Partly Cloudy 78º 13% SSW 7 mph 83%
5am Partly Cloudy 78º 10% SW 5 mph 82%
6am Partly Cloudy 79º 8% WSW 4 mph 82%
Sat
May 24 		Mostly Sunny 82º / 78º 19% SSE 10 mph 79%
Sun
May 25 		Sunny 83º / 79º 6% SSE 12 mph 81%
Mon
May 26 		Partly Cloudy 84º / 79º 19% S 13 mph 78%
Tue
May 27 		Isolated Thunderstorms 82º / 77º 34% SSW 11 mph 82%
Wed
May 28 		Isolated Thunderstorms 80º / 76º 33% SSW 10 mph 78%

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

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* Playback displays weather for the past 6 hours.

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

Today
High : 81ºF
WSW wind 5 to 10 kt. A chance of showers and thunderstorms, mainly between 8am and 4pm. Seas around 2 ft.
Tonight
Low : 75ºF
Variable winds 5 kt or less. A chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 2am. Seas 1 to 2 ft.
Thursday
High : 81ºF
Variable winds 5 kt or less. A chance of showers and thunderstorms, mainly before 1pm. Seas around 1 ft.
Thursday Night
Low : 76ºF
Variable winds 5 kt or less. Partly cloudy. Seas around 1 ft.
Friday
High : 81ºF
Variable winds 5 kt or less. Sunny. Seas around 1 ft.
Friday Night
Low : 77ºF
SSE wind around 10 kt. Mostly clear. Seas around 1 ft.
Saturday
High : 82ºF
SE wind 5 to 10 kt. Sunny. Seas around 1 ft.
Saturday Night
Low : 78ºF
SSE wind around 10 kt. Mostly clear. Seas 1 to 2 ft.
Sunday
High : 82ºF
SSE wind around 10 kt. 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

    WednesdayThursdayFriday
    Wind Speed (MPH) 888674366766
    7am11am3pm7pm11pm3am7am11am3pm7pm11pm3am
    MPH 888674366766
    DIR WSWWWNWNEESESENNEEESESESSESSW

    Current Weather Conditions In Southwest Pass, Mississippi River, LA

    As Of: 18 minutes ago

    • 77ºF
    • 77ºF
    • 8mph
    • 0º (WSW)
    • 8mph
    • Partly Cloudy
    • 10mi
    • 29.96"
    • 97%
    • 0ºF

    The weather right now in Southwest Pass, Mississippi River, LA is Partly Cloudy. The current temperature is 77°F, and the expected high and low for today, Wednesday, May 21, 2025, are 81° high temperature and 76°F low temperature. The wind is currently blowing at 8 miles per hour, and coming from the West Southwest. The wind is gusting to 8 mph. With the wind and the atmosphere the temperature feels like 77° Fahrenheit. Expected precipitation is 5 percent, with current humidity at 97 percent, and air pressure at 29.96 in. Visibility is 10 nautical miles. There are no current weather alert(s).