Sioux City weather live forecast

Today's maximum temperature in Sioux City is expected to be 3°C. Select a day from the live weather forecast for Sioux City, Iowa, USA for more weather parameters.

Wednesday
14th Jan
3

-8

9

1
Thursday
15th Jan
6

-8

1

1
Friday
16th Jan
1

-11

1

0
Saturday
17th Jan
-11

-16

2

1
Sunday
18th Jan
1

-16

1

2

5-day weather forecast updated at 04:01 on Thursday 15th 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 14th January 2026

Expect scattered clouds in Sioux City, Iowa with a maximum temperature of 3°C, maximum UV of 1 (Low) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the north.

3
°C maximum temperature
-8
°C minimum temperature
scattered clouds
9
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
-2
°C wind chill
23
kph wind from N

Sioux City weather for Thursday 15th January 2026

Expect broken clouds in Sioux City, Iowa with a maximum temperature of 6°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the north-west.

6
°C maximum temperature
-8
°C minimum temperature
broken clouds
1
hour of sunshine
1
UV index (Low)
0
mm of rainfall expected
2
°C wind chill
21
kph wind from NW

Sioux City weather for Friday 16th January 2026

Expect mostly cloudy with light snow in Sioux City, Iowa with a maximum temperature of 1°C and 1 hour of bright sunshine. There are 0-2 cm of snow expected with 17% chance of some snow and a fresh breeze of 31 kph from the north-west.

1
°C maximum temperature
-11
°C minimum temperature
mostly cloudy with light snow
1
hour of sunshine
0
UV index (None)
17
% chance of some snow
<2
cm of snow expected
-5
°C wind chill
31
kph wind from NW

Sioux City weather for Saturday 17th January 2026

Expect mostly cloudy with light snow in Sioux City, Iowa with a maximum temperature of -11°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0-2 cm of snow expected with 2% chance of some snow and a moderate breeze of 26 kph from the north-west.

-11
°C maximum temperature
-16
°C minimum temperature
mostly cloudy with light snow
2
hours of sunshine
1
UV index (Low)
2
% chance of some snow
<2
cm of snow expected
-21
°C wind chill
26
kph wind from NW

Sioux City weather for Sunday 18th January 2026

Expect cloudy with sleet or snow in Sioux City, Iowa with a maximum temperature of 1°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0-2 mm of sleet/snow expected with 17% chance of some sleet or snow and a moderate breeze of 27 kph from the north-west.