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Flat Lake Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 |  | |  | | | | | | | | |
| Mostly Clear | Chance of T-Storm | Mostly Clear | Sunny | Clear | Clear | Clear | Mostly Clear | Mostly Clear | Chance of T-Storm | Mostly Clear | Chance of T-Storm |
| Lo: 79°FLo: 26°C | Hi: 91°FHi: 33°C | Lo: 75°FLo: 24°C | Hi: 91°FHi: 33°C | Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C Lo: 75°FLo: 24°C | Hi: 91°FHi: 33°C Lo: 75°FLo: 24°C | Hi: 91°FHi: 33°C | Lo: 75°FLo: 24°C | Hi: 91°FHi: 33°C |
| POP: 50% | POP: 40% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 307 PM CDT Tue Sep 15 2026 
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Issued: 1226 AM CDT Wed Sep 16 2026
Key Messages
- A passing upper level disturbance will bring low end rain chances (20-30 percent) to lower Acadiana and coastal areas Wednesday.
- Drier air will move into the region, Thursday and Friday which will lower heat indices and make conditions feel more comfortable.
- Precipitation chances increase Sunday into early next week, as an area of low pressure moves into the northeastern Gulf.
Discussion
... (Today through Tuesday) Issued at 1223 AM CDT Wed Sep 16 2026
The large scale upper level patter...