7-Day Zone Forecast for St. James Parish (Text-Only)
NWS Forecast for: St. James Parish
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Last Update: 516 AM CDT Wed Aug 26 2026
Print


Today: Sunny. A chance of showers and thunderstorms this afternoon. Highs in the mid 90s. Northwest winds around 5 mph. Chance of rain 50 percent. Heat index values up to 112.

Tonight: Partly cloudy with a chance of showers and thunderstorms. Humid with lows in the mid 70s. South winds around 5 mph in the evening, becoming light and variable. Chance of rain 40 percent. Heat index values up to 107 early in the evening.

Thursday: Showers likely with a chance of thunderstorms in the morning, then showers with thunderstorms likely in the afternoon. Humid with highs in the lower 90s. Northwest winds around 5 mph. Chance of rain 90 percent. Heat index values up to 108.

Thursday Night: Mostly cloudy with showers and thunderstorms likely in the evening, then partly cloudy with a chance of showers and thunderstorms after midnight. Humid with lows in the mid 70s. Light and variable winds. Chance of rain 70 percent.

Friday: Mostly sunny. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Humid with highs in the lower 90s. Light and variable winds, becoming northeast around 5 mph in the afternoon. Chance of rain 60 percent. Heat index values up to 107.

Friday Night: Mostly cloudy in the evening, then clearing. Lows in the lower 70s.

Saturday: Sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40 percent. Heat index values up to 105.

Saturday Night: Partly cloudy in the evening, then clearing. Lows in the mid 70s.

Sunday: Mostly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 50 percent. Heat index values up to 105.

Sunday Night: Partly cloudy in the evening, then clearing. Lows in the mid 70s.

Monday: Mostly sunny. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Highs in the lower 90s. Chance of rain 60 percent. Heat index values up to 110.

Monday Night: Partly cloudy in the evening, then clearing. Lows in the mid 70s.

Tuesday: Sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 50 percent. Heat index values up to 110.







Zone Forecast: St. James Parish

Visit your local NWS office at: https://www.weather.gov/lix