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Optimists Park, IA Weather Forecast
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Optimists Park 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 | Chance of Showers | Chance of T-Storm | Showers | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Chance of Showers | Chance of Showers | Mostly Cloudy |
| Hi: 79°FHi: 26°C | Lo: 60°FLo: 16°C | Hi: 71°FHi: 22°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C Lo: 61°FLo: 16°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C |
| POP: 90% | POP: 50% | POP: 50% | POP: 80% | POP: 60% | POP: 50% | POP: 60% | POP: 50% | POP: 50% | POP: 50% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 456 AM CDT Tue Sep 15 2026 
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Issued: 259 AM CDT Tue Sep 15 2026
Key Messages
- Active pattern to continue into the weekend with numerous rounds of showers and storms including heavy rainfall at times.
- There is Marginal Risk, Level 1 out of 5, for severe storms in west-central Illinois and south of Highway 34 this afternoon/evening. Isolated damaging winds is the primary hazard.
- An elevated flash flooding risk could develop mid-week with repeating rounds of storms. There is a medium to high chance (40-75%) for portions of eastern Iowa to see over 2 inches of rai...