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Ottumwa Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 |  |  |  |  |  | | | | | | |
| Partly Cloudy | Chance of Showers | Rain | Chance of Rain | Clear | Sunny | Clear | Sunny | Clear | Mostly Sunny | Mostly Clear | Sunny |
| Lo: 35°FLo: 2°C | Hi: 59°FHi: 15°C | Lo: 39°FLo: 4°C | Hi: 61°FHi: 16°C | Lo: 30°FLo: -1°C | Hi: 60°FHi: 16°C | Lo: 39°FLo: 4°C | Hi: 75°FHi: 24°C | Lo: 41°FLo: 5°C | Hi: 70°FHi: 21°C | Lo: 39°FLo: 4°C | Hi: 71°FHi: 22°C |
| POP: 20% | POP: 80% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 517 PM MDT Tue Oct 13 2026 
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Issued: 527 PM MDT Tue Oct 13 2026
Key Messages
- Cold tonight, especially northwestern SD where a freeze warning is in effect. Colder air overnight Thursday with widespread freezing temperatures.
- Precipitation chances tonight through Wednesday; heaviest amounts along NE/SD border.
- Breezy Thursday with Wind Advisory (45+ mph gusts) winds possible (~55%).
- Above average temperatures return for the weekend.
Discussion
...(This Evening Through Tuesday) Issued at 107 PM MDT Tue Oct 13 2026
Water vapor imagery highlights a closed low centere...