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Chautauqua Park Sergeant Bluff, IA Weather Forecast
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Chautauqua Park Sergeant Bluff Weather Forecast
| TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
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| Chance of T-Storm | Chance of T-Storm | Mostly Cloudy | Chance of T-Storm | Chance of T-Storm | Mostly Sunny | Mostly Clear | Clearing | Mostly Clear | Sunny | Partly Cloudy | Mostly Cloudy |
| Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 60°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C |
| POP: 50% | POP: 60% | POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 824 PM CDT Mon Aug 17 2026 
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Chautauqua Park Sergeant Bluff Forecast Discussion
Issued: 922 PM CDT Mon Aug 17 2026
Key Messages
- Isolated to scattered storms are ongoing this evening, through development remains very uncertain. Risks of 1" hail and 60 mph will be possible.
- Greater storm potential after midnight and through the overnight. Initial supercells are capable of producing 1-2" hail and wind gusts to 65 mph. Storms gradually grow into broken lines with a few bowing segments. Risks become wind gusts to 70 mph and marginal hail.
- Lingering rain early Tuesday will push the gre...