Marine Weather Net

Port Sulphur, LA Weather Forecast


Marine Forecast: Breton Sound


Port Sulphur, Louisiana

 Lat: 29.48N, Lon: 89.69W

Current Conditions Updated: 1051 AM CST MON DEC 2 2019

Clear


Temp: 52°F
  • Humidity:
  • 48%
  • Winds:
  • 16 MPH NNW
  • Gusts:
  • 24 MPH
  • Barometer:
  • 30.18 in.
  • Dewpoint:
  • 33°F
  • Heat index:
  • 52°F

  • Sunrise:
  • 6:43 AM CST
  • Sunset:
  • 5:00 PM CST
  • Moonrise:
  • 1:07 AM CST
  • Moonset:
  • 12:56 PM CST

TODAY

SUNNY

Hi: 71°F
Lo: 55°F

SUNDAY

MOSTLY SUNNY
Hi: 65°F
Lo: 39°F
Precip: 40%

MONDAY

SUNNY

Hi: 51°F
Lo: 45°F

TUESDAY

MOSTLY SUNNY
Hi: 61°F
Lo: 59°F
Weather Forecast In Detail:
Forecast Issued: 757 AM CST Sat Dec 13 2025

Today...Sunny. Highs in the lower 70s. Southeast winds around 5 mph.
Tonight...Mostly clear in the evening, then mostly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Areas of fog. Lows in the mid 50s. Southeast winds around 5 mph, becoming west after midnight. Chance of rain 40 percent.
Sunday...Patchy fog in the morning. Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then mostly sunny in the afternoon. Breezy with highs in the mid 60s. Temperature falling into the lower 50s in the afternoon. North winds 15 to 25 mph. Chance of rain 40 percent.
Sunday Night...Mostly clear. Much cooler with lows in the upper 30s. Northeast winds 15 to 20 mph with gusts up to 30 mph.
Monday...Sunny, cooler with highs in the lower 50s. Northeast winds 10 to 15 mph with gusts up to 25 mph.
Monday Night...Mostly clear in the evening, then becoming partly cloudy. Near steady temperature in the mid 40s.
Tuesday...Mostly sunny. Not as cool with highs in the lower 60s.
Tuesday Night And Wednesday...Mostly cloudy. Lows in the mid 50s. Highs in the upper 60s.
Wednesday Night...Mostly cloudy with a 20 percent chance of showers. Lows in the upper 50s. Highs around 70.
Thursday...Mostly cloudy with a 20 percent chance of showers. Lows in the upper 50s. Highs around 70.
Friday...Partly sunny. Highs in the upper 60s.
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