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 Ottumwa Weather Forecast Summary |
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Today
Aug 15th
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Sunday
Aug 16th
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Monday
Aug 17th
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Tuesday
Aug 18th
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Wednesday
Aug 19th
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Thundershowers |
Thundershowers |
Mostly Sunny |
Thundershowers |
Rain |
93°F
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84°F
73°F |
84°F
64°F |
95°F
66°F |
78°F
66°F |
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| Ottumwa Detailed Weather Forecast |
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| Saturday, August 15th, 2026 |
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Overnight |
Temperature: 73°F |
| A mix of cloudy and clear skies with a few showers. Chance of a thunderstorm. Windy at times. |
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Morning |
Temperature: 75°F |
| Mostly cloudy with a chance of showers or thundershowers. |
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Afternoon |
Temperature: 91°F |
| Sunny with cloudy periods. Chance of a thunderstorm. |
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Evening |
Temperature: 81°F |
| Clear with cloudy periods. Chance of a thunderstorm. |
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| Sunday, August 16th, 2026 |
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Overnight |
Temperature: 76°F |
| Mostly cloudy with periods of rain. Chance of a thunderstorm. Windy at times. |
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Morning |
Temperature: 76°F |
| A mix of cloud and sun with a few showers. Chance of a thunderstorm. |
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Afternoon |
Temperature: 84°F |
| A mix of cloud and sun. Chance of a thunderstorm. |
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Evening |
Temperature: 77°F |
| Clear. Chance of a thunderstorm. |
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| Monday, August 17th, 2026 |
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Overnight |
Temperature: 67°F |
| Clear. |
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Morning |
Temperature: 69°F |
| Mostly sunny. |
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Afternoon |
Temperature: 83°F |
| Sunny with cloudy periods. |
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Evening |
Temperature: 75°F |
| Clear. |
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| Tuesday, August 18th, 2026 |
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Overnight |
Temperature: 67°F |
| Mostly clear. |
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Morning |
Temperature: 73°F |
| Sunny. |
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Afternoon |
Temperature: 92°F |
| Sunny with cloudy periods. Chance of a thunderstorm. |
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Evening |
Temperature: 78°F |
| Mostly cloudy with rain, at times heavy. Chance of a thunderstorm. Windy at times. |
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| Wednesday, August 19th, 2026 |
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Overnight |
Temperature: 67°F |
| Clear with periods of rain. |
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Morning |
Temperature: 69°F |
| A mix of cloud and sun. |
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Afternoon |
Temperature: 76°F |
| Mostly sunny. Windy at times. |
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Evening |
Temperature: 70°F |
| Mostly clear. |
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| Thursday, August 20th, 2026 |
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Overnight |
Temperature: 64°F |
| A mix of cloudy and clear skies. |
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Morning |
Temperature: 66°F |
| Sunny with cloudy periods. |
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Afternoon |
Temperature: 66°F |
| Cloudy with showers likely. |
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Evening |
Temperature: 62°F |
| Cloudy with showers likely. Windy at times. |
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| Friday, August 21st, 2026 |
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Overnight |
Temperature: 60°F |
| Cloudy with a chance of showers. |
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Morning |
Temperature: 61°F |
| Cloudy with a chance of showers. Windy at times. |
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Afternoon |
Temperature: 71°F |
| Mostly sunny with a slight chance of showers. Windy at times. |
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Evening |
Temperature: 70°F |
| Clear with cloudy periods. |
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| Saturday, August 22nd, 2026 |
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Overnight |
Temperature: 62°F |
| Clear. |
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Morning |
Temperature: 67°F |
| Sunny. |
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Afternoon |
Temperature: 82°F |
| Sunny. Slight chance of a thunderstorm. |
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Evening |
Temperature: 74°F |
| Clear. Slight chance of a thunderstorm. |
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