Sioux City weather live forecast

Today's maximum temperature in Sioux City is expected to be 1°C. Select a day from the live weather forecast for Sioux City, Iowa, USA for more weather parameters.

Monday
15th Dec
1

-7

8

2
Tuesday
16th Dec
4

-4

5

2
Wednesday
17th Dec
6

-2

7

1
Thursday
18th Dec
4

-11

2

1
Friday
19th Dec
1

-11

5

1

5-day weather forecast updated at 04:01 on Monday 15th December 2025 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 Monday 15th December 2025

Expect scattered clouds in Sioux City, Iowa with a maximum temperature of 1°C, maximum UV of 2 (Low) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the south.

1
°C maximum temperature
-7
°C minimum temperature
scattered clouds
8
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
-3
°C wind chill
18
kph wind from S

Sioux City weather for Tuesday 16th December 2025

Expect cloudy with sleet or snow in Sioux City, Iowa with a maximum temperature of 4°C, maximum UV of 2 (Low) and 5 hours of bright sunshine. There are 0-2 mm of sleet/snow expected with 4% chance of some sleet or snow and a light breeze of 11 kph from the north-west.

4
°C maximum temperature
-4
°C minimum temperature
cloudy with sleet or snow
5
hours of sunshine
2
UV index (Low)
4
% chance of some sleet or snow
<2
mm of sleet/snow expected
1
°C wind chill
11
kph wind from NW

Sioux City weather for Wednesday 17th December 2025

Expect sunshine and showers in Sioux City, Iowa with a maximum temperature of 6°C, maximum UV of 1 (Low) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 85% chance of some rain and a moderate breeze of 22 kph from the south.

6
°C maximum temperature
-2
°C minimum temperature
sunshine and showers
7
hours of sunshine
1
UV index (Low)
85
% chance of some rain
<2
mm of rainfall expected
3
°C wind chill
22
kph wind from S

Sioux City weather for Thursday 18th December 2025

Expect mostly cloudy with light rain in Sioux City, Iowa with a maximum temperature of 4°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 4% chance of some rain and a fresh breeze of 38 kph from the north-west.

4
°C maximum temperature
-11
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
1
UV index (Low)
4
% chance of some rain
<2
mm of rainfall expected
-2
°C wind chill
38
kph wind from NW

Sioux City weather for Friday 19th December 2025

Expect broken clouds 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 mm of rainfall expected and a moderate breeze of 21 kph from the south.