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Bayou Maria Basin, LA Weather Forecast
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Bayou Maria Basin Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SUNDAY | MONDAY |
 |  | | | |  | | | | | |
| Sunny | Partly Cloudy | Mostly Sunny | Clearing | Sunny | Mostly Clear | Mostly Clear | Partly Cloudy | Mostly Clear | Mostly Clear | Mostly Clear |
| Hi: 100°FHi: 38°C | Lo: 79°FLo: 26°C | Hi: 99°FHi: 37°C | Lo: 79°FLo: 26°C | Hi: 99°FHi: 37°C | Hi: 99°FHi: 37°C Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C Lo: 75°FLo: 24°C | Lo: 75°FLo: 24°C | Hi: 100°FHi: 38°C Lo: 75°FLo: 24°C | Hi: 100°FHi: 38°C Lo: 75°FLo: 24°C | Hi: 100°FHi: 38°C Lo: 75°FLo: 24°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 306 AM CDT Tue Aug 18 2026 
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Issued: 612 AM CDT Tue Aug 18 2026
Key Messages
- A Heat Advisory will be in effect from CenLA to southern Acadiana from 12PM to 8PM.
- An upper level ridge will remain in place keeping afternoon highs above normal.
- No appreciable rainfall accumulation is expected through the next seven days.
Discussion
... (Today through Monday) Issued at 1248 AM CDT Tue Aug 18 2026
Little to no overall change in the pattern. At the surface, high pressure is centered over the Gulf, where it is expected to meander for severa...