San Augustine, TX Weather Forecast
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San Augustine Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
| Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Partly Cloudy | Chance of T-Storm | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Mostly Clear | Chance of T-Storm | Mostly Clear |
| Hi: 99°FHi: 37°C | Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C | Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°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: 71°FLo: 22°C |
| POP: 40% | POP: 20% | POP: 50% | POP: 30% | POP: 20% | POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 627 AM CDT Tue Sep 08 2026 

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Issued: 1211 PM CDT Tue Sep 8 2026
Key Messages
Issued at 1244 AM CDT Tue Sep 8 2026- Persistent hazardous heat continue with a widespread Heat Advisory through Tuesday evening.
- Scattered, diurnally driven showers and thunderstorms will remain a daily fixture through the week.
- There remains some indication that the pattern could change towards the end of the week, will it bring some "cooler" temps?
Discussion
... Issued at 1244 AM CDT Tue Sep 8 2026
The synoptic environment remains firmly dominated by a broad upper-level ridge that is...
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