Sioux City 7-day weather forecast

Written by:
August 4, 2025
ESOlex // Shutterstock

Sioux City 7-day weather forecast

Stacker created the forecast for Sioux City, Iowa using data from OpenWeather. This week's high is 95 °F on Thursday, while the low is 59 °F on Tuesday. There are expected to be 4 sunny days and rain on 4 days this week.

There are currently no weather alerts.

Monday, August 4

- High of 74 °F, low of 60 °F (68% humidity)
- Overcast with a 100% chance of rain (8 mm of rain)
- High risk of harm from sun exposure (5 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 6:21 AM, sunset at 8:42 PM
1 / 6
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Tuesday, August 5

- High of 83 °F, low of 59 °F (59% humidity)
- Mostly cloudy with a 36% chance of rain (0 mm of rain)
- Moderate risk of harm from sun exposure (5 UV index)
- Moderate breeze (18 mph wind)
- Sunrise at 6:22 AM, sunset at 8:41 PM
2 / 6
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Wednesday, August 6

- High of 92 °F, low of 66 °F (60% humidity)
- Fair with a 100% chance of rain (2 mm of rain)
- Very high risk of harm from sun exposure (8 UV index)
- Moderate breeze (18 mph wind)
- Sunrise at 6:23 AM, sunset at 8:39 PM
3 / 6
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Thursday, August 7

- High of 95 °F, low of 75 °F (55% humidity)
- Fair with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Moderate breeze (16 mph wind)
- Sunrise at 6:24 AM, sunset at 8:38 PM
4 / 6
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Friday, August 8

- High of 92 °F, low of 78 °F (45% humidity)
- Mostly sunny with a 0% chance of rain
- Fresh breeze (20 mph wind)
- Sunrise at 6:25 AM, sunset at 8:37 PM
5 / 6
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Saturday, August 9

- High of 79 °F, low of 67 °F (69% humidity)
- Overcast with a 100% chance of rain (23 mm of rain)
- Moderate breeze (14 mph wind)
- Sunrise at 6:26 AM, sunset at 8:35 PM
- Full moon
6 / 6
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Sunday, August 10

- High of 87 °F, low of 62 °F (50% humidity)
- Sunny with a 0% chance of rain
- Gentle breeze (11 mph wind)
- Sunrise at 6:27 AM, sunset at 8:34 PM

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