National Weather Service Forecast for: Sulphur LA
Issued by: National Weather Service Lake Charles, LA
Updated: 2:45 am CDT Jun 22, 2026
 
Today

Today: Mostly sunny, with a high near 90. Heat index values as high as 102. South wind 5 to 10 mph, with gusts as high as 20 mph.
Mostly Sunny
 Tonight

Tonight: Partly cloudy, with a low around 78. South wind 5 to 10 mph.
Partly Cloudy
 Tuesday

Tuesday: Partly sunny, then gradually becoming sunny, with a high near 92. Heat index values as high as 103. Light south wind increasing to 5 to 10 mph in the morning.
Becoming
Sunny
 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 76. South wind around 5 mph becoming calm after midnight.
Mostly Clear
 Wednesday

Wednesday: Sunny, with a high near 93. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 75. South wind 5 to 10 mph becoming light southwest after midnight.
Mostly Clear
 Thursday

Thursday: Sunny, with a high near 92. Light southwest wind becoming south 5 to 10 mph in the afternoon.
Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 76. South wind 5 to 10 mph.
Mostly Clear
 Friday

Friday: Sunny, with a high near 91. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Sunny
Hi 90 °F Lo 78 °F Hi 92 °F Lo 76 °F Hi 93 °F Lo 75 °F Hi 92 °F Lo 76 °F Hi 91 °F

 

Today
 
 Mostly sunny, with a high near 90. Heat index values as high as 102. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
 
 Partly cloudy, with a low around 78. South wind 5 to 10 mph.
Tuesday
 
 Partly sunny, then gradually becoming sunny, with a high near 92. Heat index values as high as 103. Light south wind increasing to 5 to 10 mph in the morning.
Tuesday Night
 
 Mostly clear, with a low around 76. South wind around 5 mph becoming calm after midnight.
Wednesday
 
 Sunny, with a high near 93. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Wednesday Night
 
 Mostly clear, with a low around 75. South wind 5 to 10 mph becoming light southwest after midnight.
Thursday
 
 Sunny, with a high near 92. Light southwest wind becoming south 5 to 10 mph in the afternoon.
Thursday Night
 
 Mostly clear, with a low around 76. South wind 5 to 10 mph.
Friday
 
 Sunny, with a high near 91. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
 
 Mostly clear, with a low around 78.
Saturday
 
 Sunny, with a high near 91.
Saturday Night
 
 Mostly clear, with a low around 79.
Sunday
 
 Sunny, with a high near 91.

 

Forecast from NOAA-NWS for Sulphur LA.