Sioux City weather live forecast

Today's maximum temperature in Sioux City is expected to be 12°C. Select a day from the live weather forecast for Sioux City, Iowa, USA for more weather parameters.

Wednesday
7th Jan
12

-1

9

1
Thursday
8th Jan
5

1

0

1
Friday
9th Jan
3

-2

1

1
Saturday
10th Jan
1

-6

5

1
Sunday
11th Jan
2

-8

7

1

5-day weather forecast updated at 04:01 on Wednesday 7th January 2026 GMT

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The 5-day weather forecast for Iowa (Sioux City) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Sioux City weather forecast by day

Below are the detailed weather forecasts for Sioux City for the next 5 days.

Sioux City weather for Wednesday 7th January 2026

Expect scattered clouds in Sioux City, Iowa with a maximum temperature of 12°C, maximum UV of 1 (Low) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the south-east.

12
°C maximum temperature
-1
°C minimum temperature
scattered clouds
9
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
12
°C wind chill
7
kph wind from SE

Sioux City weather for Thursday 8th January 2026

Expect cloudy with sleet or snow in Sioux City, Iowa with a maximum temperature of 5°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 20-30 mm of sleet/snow expected with 48% chance of some sleet or snow and a gentle breeze of 14 kph from the north.

5
°C maximum temperature
1
°C minimum temperature
cloudy with sleet or snow
0
hours of sunshine
1
UV index (Low)
48
% chance of some sleet or snow
<30
mm of sleet/snow expected
2
°C wind chill
14
kph wind from N

Sioux City weather for Friday 9th January 2026

Expect overcast skies in Sioux City, Iowa with a maximum temperature of 3°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the north-west.

3
°C maximum temperature
-2
°C minimum temperature
overcast skies
1
hour of sunshine
1
UV index (Low)
0
mm of rainfall expected
0
°C wind chill
11
kph wind from NW

Sioux City weather for Saturday 10th January 2026

Expect clear skies with flurries of snow in Sioux City, Iowa with a maximum temperature of 1°C, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 0-2 cm of snow expected with 15% chance of some snow and a moderate breeze of 23 kph from the north-west.

1
°C maximum temperature
-6
°C minimum temperature
clear skies with flurries of snow
5
hours of sunshine
1
UV index (Low)
15
% chance of some snow
<2
cm of snow expected
-5
°C wind chill
23
kph wind from NW

Sioux City weather for Sunday 11th January 2026

Expect scattered clouds in Sioux City, Iowa with a maximum temperature of 2°C, maximum UV of 1 (Low) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the north-west.