| NWS Forecast for: St. Helena Parish Issued by: National Weather Service New Orleans/Baton Rouge, LA Last Update: 121 PM CDT Sat Jul 18 2026 |  |
This Afternoon: Sunny. Near steady temperature in the lower 90s. Northwest winds around 5 mph. Heat index values up to 105. Tonight: Mostly clear. Lows in the mid 70s. Northwest winds around 5 mph. Sunday: Sunny. Highs in the mid 90s. Northwest winds around 5 mph. Heat index values up to 105. Sunday Night: Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 70s. Northwest winds around 5 mph. Monday: Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Northwest winds around 5 mph. Chance of rain 20 percent. Heat index values up to 106. Monday Night: Mostly clear. Lows in the mid 70s. Tuesday Through Wednesday: Mostly clear with a slight chance of showers and thunderstorms. Highs in the upper 90s. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 110. Wednesday Night: Mostly clear. Lows in the mid 70s. Heat index values up to 110 early in the evening. Thursday: Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 105. Thursday Night: Mostly clear. Lows in the mid 70s. Friday: Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 20 percent. | |
| Zone Forecast: St. Helena Parish | |
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