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Sullivan City Weather Forecast
| THIS AFTERNOON | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT |
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| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Mostly Sunny | Partly Cloudy | Sunny | Mostly Clear |
| Hi: 89°FHi: 32°C | Lo: 75°FLo: 24°C | Hi: 90°FHi: 32°C | Lo: 75°FLo: 24°C | Hi: 85°FHi: 29°C | Lo: 71°FLo: 22°C | Hi: 85°FHi: 29°C | Lo: 71°FLo: 22°C | Hi: 89°FHi: 32°C | Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C | Lo: 71°FLo: 22°C |
| POP: 70% | POP: 70% | POP: 70% | POP: 70% | POP: 80% | POP: 80% | POP: 80% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 128 PM CDT Fri Oct 02 2026 
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Issued: 623 PM CDT Fri Oct 2 2026
Key Messages
Updated at 623 PM CDT Fri Oct 2 2026- Wetter and slightly cooler conditions are expected into early next week due to a frontal passage and a multi-day rainfall event that gradually shifts toward the coast by late this weekend.
- A Coastal Flood Statement is in effect for tidal runup ahead of and after high tide tonight at 127 AM.
- Isolated flash flooding will remain a concern through the weekend across all of Deep South Texas, especially in areas that have already received several inches...