10-Day Weather Forecast - Port Sulphur, LA

Mostly sunny with a slight chance of showers and thunderstorms. Humid with highs around 90. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 105.

Partly cloudy in the evening, then clearing. Humid with lows in the upper 70s. Southwest winds 5 to 10 mph.

Sunny with highs in the lower 90s. Southwest winds 5 to 10 mph. Heat index values up to 105.

Mostly clear. Humid with lows in the upper 70s. Southwest winds 5 to 10 mph.

Sunny. Highs in the lower 90s. Heat index values up to 105.

Clear. Lows in the upper 70s.

Mostly clear. Highs in the lower 90s. Heat index values up to 110.

Mostly clear. Lows around 80. Heat index values up to 110.

Mostly clear. Highs in the lower 90s. Heat index values up to 110.

Mostly clear. Lows around 80. Heat index values up to 110.

Mostly clear. Highs in the lower 90s. Heat index values up to 110.

Mostly clear. Lows around 80. Heat index values up to 110.

Mostly clear. Highs in the lower 90s. Heat index values up to 110.

Clear with scattered thunderstorms. Chance of storms 40%. Low temperature around 80F. Dew point will be around 77F with an average humidity of 81%. Winds will be 6 mph from the SW.

Sunny with scattered thunderstorms. Chance of storms 35%. High temperature around 93F. Dew point will be around 77F with an average humidity of 72%. Winds will be 4 mph from the W.

Clear with scattered thunderstorms. Chance of storms 40%. Low temperature around 80F. Dew point will be around 77F with an average humidity of 79%. Winds will be 5 mph from the SW.

Sunny with a 45% chance for rain and thunderstorms. High temperature around 93F. Dew point will be around 77F with an average humidity of 71%. Winds will be 3 mph from the NW.

Clear with scattered thunderstorms. Chance of storms 45%. Low temperature around 81F. Dew point will be around 78F with an average humidity of 81%. Winds will be 4 mph from the SW.