Sioux City 7-day weather forecast

Written by:
September 8, 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 97 °F on Saturday, while the low is 55 °F on Monday. There are expected to be 3 sunny days and rain on 4 days this week.

There are currently no weather alerts.

Monday, September 8

- High of 80 °F, low of 55 °F (48% humidity)
- Overcast with a 32% chance of rain (0 mm of rain)
- Moderate risk of harm from sun exposure (5 UV index)
- Fresh breeze (21 mph wind)
- Sunrise at 6:58 AM, sunset at 7:48 PM
1 / 6
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Tuesday, September 9

- High of 85 °F, low of 59 °F (52% humidity)
- Partly cloudy with a 85% chance of rain (1 mm of rain)
- High risk of harm from sun exposure (5 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 6:59 AM, sunset at 7:46 PM
2 / 6
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Wednesday, September 10

- High of 93 °F, low of 63 °F (36% humidity)
- Sunny with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 7:00 AM, sunset at 7:44 PM
3 / 6
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Thursday, September 11

- High of 90 °F, low of 59 °F (35% humidity)
- Mostly cloudy with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Moderate breeze (17 mph wind)
- Sunrise at 7:01 AM, sunset at 7:43 PM
4 / 6
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Friday, September 12

- High of 93 °F, low of 66 °F (40% humidity)
- Overcast with a 55% chance of rain (1 mm of rain)
- High risk of harm from sun exposure (7 UV index)
- Moderate breeze (18 mph wind)
- Sunrise at 7:02 AM, sunset at 7:41 PM
5 / 6
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Saturday, September 13

- High of 97 °F, low of 69 °F (27% humidity)
- Fair with a 0% chance of rain
- High risk of harm from sun exposure (7 UV index)
- Moderate breeze (16 mph wind)
- Sunrise at 7:03 AM, sunset at 7:39 PM
6 / 6
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Sunday, September 14

- High of 96 °F, low of 65 °F (31% humidity)
- Sunny with a 79% chance of rain (1 mm of rain)
- High risk of harm from sun exposure (7 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 7:04 AM, sunset at 7:37 PM
- Last quarter moon

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