Sioux City 7-day weather forecast

Written by:
March 9, 2026
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 78 °F on Friday, while the low is 4 °F on Monday. There is expected to be 1 sunny day and snow on 1 day this week.

NWS Sioux Falls SD has issued a cold weather advisory until Monday at 11:00 AM.

Monday, March 16

- High of 22 °F, low of 4 °F (42% humidity)
- Sunny with a 0% chance of snow
- Moderate risk of harm from sun exposure (4 UV index)
- Fresh breeze (24 mph wind)
- Sunrise at 7:35 AM, sunset at 7:32 PM
1 / 6
Gaschwald // Shutterstock

Tuesday, March 17

- High of 36 °F, low of 8 °F (80% humidity)
- Overcast with a 100% chance of snow (1 mm of snow)
- Moderate risk of harm from sun exposure (4 UV index)
- Moderate breeze (17 mph wind)
- Sunrise at 7:34 AM, sunset at 7:33 PM
2 / 6
Stepan Bessmelnitsin // Shutterstock

Wednesday, March 18

- High of 67 °F, low of 23 °F (54% humidity)
- Partly cloudy with a 0% chance of rain
- High risk of harm from sun exposure (5 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 7:32 AM, sunset at 7:35 PM
- New moon
3 / 6
Ryzhkov Oleksandr // Shutterstock

Thursday, March 19

- High of 75 °F, low of 44 °F (42% humidity)
- Partly cloudy with a 0% chance of rain
- High risk of harm from sun exposure (5 UV index)
- Light breeze (7 mph wind)
- Sunrise at 7:30 AM, sunset at 7:36 PM
4 / 6
Saijai Boonmak // Shutterstock

Friday, March 20

- High of 78 °F, low of 57 °F (25% humidity)
- Partly cloudy with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 7:28 AM, sunset at 7:37 PM
5 / 6
ESOlex // Shutterstock

Saturday, March 21

- High of 77 °F, low of 58 °F (27% humidity)
- Partly cloudy with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Moderate breeze (17 mph wind)
- Sunrise at 7:27 AM, sunset at 7:38 PM
6 / 6
IKO-studio // Shutterstock

Sunday, March 22

- High of 53 °F, low of 40 °F (16% humidity)
- Partly cloudy with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Fresh breeze (22 mph wind)
- Sunrise at 7:25 AM, sunset at 7:39 PM

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