Weather World
Sullivan Lake, LA 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Sullivan Lake, LA Weather Forecast
Sullivan Lake, LA Weather Forecast Date: 1111 AM CDT Sat Aug 15 2026
The area/counties/county of: Iberville, including the cities of: Bayou Sorrel, Plaquemine, and White Castle.or toggle through each period.
This Afternoon... Sunny. Highs in the upper 90s. Light and variable winds, becoming southwest around 5 mph. Heat index values up to 114.
Tonight... Mostly clear. Humid with lows in the upper 70s. Southwest winds around 5 mph. Heat index values up to 111 early in the evening.
Sunday... Sunny with highs in the upper 90s. West winds around 5 mph. Heat index values up to 115.
Sunday Night... Mostly clear. Humid with lows in the upper 70s. Southwest winds around 5 mph. Heat index values up to 111 early in the evening.
Monday... Sunny. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the upper 90s. West winds around 5 mph. Chance of rain 20%. Heat index values up to 114.
Monday Night... Partly cloudy in the evening, then becoming mostly clear. Lows in the upper 70s. Heat index values up to 110 early in the evening.
Tuesday... Partly cloudy. Highs in the upper 90s. Lows in the upper 70s. Heat index values up to 115.
Tuesday Night... Partly cloudy. Highs in the upper 90s. Lows in the upper 70s. Heat index values up to 115.
Wednesday... Sunny. Highs in the upper 90s. Heat index values up to 110.
Wednesday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. Heat index values up to 105 early in the evening.
Thursday... Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 90s. Chance of rain 20%. Heat index values up to 110.
Thursday Night... Partly cloudy in the evening, then clearing. Lows in the upper 70s. Heat index values up to 105 early in the evening.
POP = Probability of Precipitation
Sullivan Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...