Sioux City 7-day weather forecast

Written by:
March 23, 2026
ESOlex // Shutterstock

Sioux City 7-day weather forecast

created the forecast for Sioux City, Iowa using data from . This week's high is 84 掳F on Sunday, while the low is 41 掳F on Wednesday. There is expected to be 1 sunny day and rain on 4 days this week.

There are currently no weather alerts.

Monday, May 18

- High of 59 掳F, low of 51 掳F (82% humidity)
- Mostly cloudy with a 100% chance of rain (7 mm of rain)
- Moderate breeze (18 mph wind)
- Sunrise at 6:01 AM, sunset at 8:43 PM
1 / 6
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Tuesday, May 19

- High of 61 掳F, low of 42 掳F (48% humidity)
- Overcast with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Fresh breeze (19 mph wind)
- Sunrise at 6:00 AM, sunset at 8:44 PM
2 / 6
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Wednesday, May 20

- High of 63 掳F, low of 41 掳F (43% humidity)
- Overcast with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 5:59 AM, sunset at 8:45 PM
3 / 6
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Thursday, May 21

- High of 57 掳F, low of 51 掳F (68% humidity)
- Overcast with a 40% chance of rain (0 mm of rain)
- Moderate risk of harm from sun exposure (2 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 5:58 AM, sunset at 8:46 PM
4 / 6
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Friday, May 22

- High of 60 掳F, low of 52 掳F (89% humidity)
- Overcast with a 100% chance of rain (4 mm of rain)
- Moderate breeze (17 mph wind)
- Sunrise at 5:57 AM, sunset at 8:47 PM
5 / 6
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Saturday, May 23

- High of 69 掳F, low of 54 掳F (72% humidity)
- Overcast with a 100% chance of rain (2 mm of rain)
- Gentle breeze (12 mph wind)
- Sunrise at 5:56 AM, sunset at 8:48 PM
- First quarter moon
6 / 6
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Sunday, May 24

- High of 84 掳F, low of 55 掳F (47% humidity)
- Sunny with a 0% chance of rain
- Moderate breeze (16 mph wind)
- Sunrise at 5:56 AM, sunset at 8:49 PM

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