| NWS Forecast for: Lower St. Mary Issued by: National Weather Service Lake Charles, LA Last Update: 307 PM CDT Wed Jul 15 2026 |  |
| Tonight: Partly cloudy. Lows in the mid 70s. Southeast winds around 5 mph. Thursday: Sunny with highs in the lower 90s. South winds 5 to 10 mph. Heat index values up to 105. Thursday Night: Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the upper 70s. Southwest winds around 5 mph. Friday: Sunny with highs in the lower 90s. Southwest winds around 5 mph. Heat index values up to 106. Friday Night: Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the upper 70s. West winds around 5 mph. Saturday Through Sunday: Partly cloudy. Highs in the lower 90s. Lows in the upper 70s. Heat index values up to 105. Sunday Night Through Tuesday Night: Mostly clear. Lows in the upper 70s. Highs in the mid 90s. Heat index values up to 110. Wednesday: Mostly sunny. Highs in the mid 90s. Heat index values up to 110. | |
| Zone Forecast: Lower St. Mary | |
Visit your local NWS office at: https://www.weather.gov/lch |