| NWS Forecast for: Upper St. Mary Issued by: National Weather Service Lake Charles, LA Last Update: 306 AM CDT Fri Jul 24 2026 | |
| Today: Mostly sunny. Highs in the lower 90s. South winds 5 to 10 mph. Tonight: Mostly clear. Humid with lows in the mid 70s. South winds around 5 mph in the evening, becoming light and variable. Saturday: Mostly sunny. Humid with highs in the lower 90s. West winds 5 to 10 mph. Saturday Night: Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the upper 70s. Southwest winds 5 to 10 mph. Sunday: Sunny with highs in the mid 90s. West winds 5 to 10 mph. Heat index values up to 108. Sunday Night Through Wednesday Night: Mostly clear. Lows in the upper 70s. Highs in the mid 90s. Heat index values up to 110. Thursday: Mostly sunny. Highs in the mid 90s. Heat index values up to 110. | |
| Zone Forecast: Upper St. Mary | |
Visit your local NWS office at: https://www.weather.gov/lch |