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Aca Great River Section, IA Weather Forecast
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Aca Great River Section Weather Forecast
| TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
 |  | |  | | |  | | | |  | |
| Partly Cloudy | Mostly Sunny | Partly Cloudy | Chance of T-Storm | Clearing | Sunny | Clear | Sunny | Mostly Clear | Mostly Sunny | Chance of Showers | Chance of T-Storm |
| Lo: 55°FLo: 13°C | Hi: 80°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C |
| POP: 20% | POP: 20% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 237 PM CDT Sun Aug 23 2026 
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Aca Great River Section Forecast Discussion
Issued: 108 PM CDT Sun Aug 23 2026
Key Messages
- Generally quiet weather for the upcoming work week, with high temperatures in the low to mid-80s each day.
- Some light showers are possible across the western half of Iowa late tonight into Monday morning. A few showers and thunderstorms will also be possible on Tuesday into Tuesday night, with a low risk of severe weather just to our northeast in parts of Minnesota and Wisconsin.
- A more active weather pattern will return with additional thunderstorm chances next weekend, but any furt...