Ottumwa 7-day weather forecast

Written by:
June 8, 2026
ESOlex // Shutterstock

Ottumwa 7-day weather forecast

Stacker created the forecast for Ottumwa, Iowa using data from OpenWeather. This week's high is 96 °F on Monday, while the low is 56 °F on Thursday. There is expected to be 1 sunny day and rain on 2 days this week.

NWS Des Moines IA has issued an air quality alert until Monday at 11:00 AM and a heat advisory until Tuesday at 08:00 PM.

Monday, July 20

- High of 96 °F, low of 71 °F (62% humidity)
- Partly cloudy with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Moderate breeze (15 mph wind)
- Sunrise at 5:54 AM, sunset at 8:37 PM
1 / 6
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Tuesday, July 21

- High of 85 °F, low of 66 °F (59% humidity)
- Mostly cloudy with a 100% chance of rain (3 mm of rain)
- Very high risk of harm from sun exposure (9 UV index)
- Moderate breeze (16 mph wind)
- Sunrise at 5:55 AM, sunset at 8:36 PM
- First quarter moon
2 / 6
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Wednesday, July 22

- High of 74 °F, low of 58 °F (55% humidity)
- Partly cloudy with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Gentle breeze (10 mph wind)
- Sunrise at 5:56 AM, sunset at 8:35 PM
3 / 6
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Thursday, July 23

- High of 68 °F, low of 56 °F (61% humidity)
- Overcast with a 0% chance of rain
- Moderate risk of harm from sun exposure (5 UV index)
- Light breeze (7 mph wind)
- Sunrise at 5:57 AM, sunset at 8:34 PM
4 / 6
Deborah Kolb // Shutterstock

Friday, July 24

- High of 64 °F, low of 59 °F (94% humidity)
- Overcast with a 100% chance of rain (6 mm of rain)
- Gentle breeze (8 mph wind)
- Sunrise at 5:57 AM, sunset at 8:34 PM
5 / 6
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Saturday, July 25

- High of 79 °F, low of 58 °F (67% humidity)
- Partly sunny with a 0% chance of rain
- Gentle breeze (8 mph wind)
- Sunrise at 5:58 AM, sunset at 8:33 PM
6 / 6
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Sunday, July 26

- High of 94 °F, low of 67 °F (57% humidity)
- Sunny with a 0% chance of rain
- Gentle breeze (12 mph wind)
- Sunrise at 5:59 AM, sunset at 8:32 PM

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