Sioux City weather live forecast

Today's maximum temperature in Sioux City is expected to be 39°F. Select a day from the live weather forecast for Sioux City, Iowa, USA for more weather parameters.

Sunday
28th Dec
39

10

0

1
Monday
29th Dec
19

9

6

1
Tuesday
30th Dec
37

14

3

1
Wednesday
31st Dec
30

14

0

1
Thursday
1st Jan
16

10

8

1

5-day weather forecast updated at 04:01 on Saturday 27th 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 Sunday 28th December 2025

Expect mostly cloudy with light snow in Sioux City, Iowa with a maximum temperature of 39°F, maximum UV of 1 (Low) and no hours of bright sunshine. There are 2-5 cm of snow expected with 86% chance of some snow and a fresh breeze of 21 mph from the north-west.

39
°F maximum temperature
10
°F minimum temperature
mostly cloudy with light snow
0
hours of sunshine
1
UV index (Low)
86
% chance of some snow
<5
cm of snow expected
30
°F wind chill
21
mph wind from NW

Sioux City weather for Monday 29th December 2025

Expect broken clouds in Sioux City, Iowa with a maximum temperature of 19°F, maximum UV of 1 (Low) and 6 hours of bright sunshine. There are 0 cm of snow expected and a fresh breeze of 19 mph from the north-west.

19
°F maximum temperature
9
°F minimum temperature
broken clouds
6
hours of sunshine
1
UV index (Low)
0
cm of snow expected
3
°F wind chill
19
mph wind from NW

Sioux City weather for Tuesday 30th December 2025

Expect broken clouds in Sioux City, Iowa with a maximum temperature of 37°F, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 mph from the west.

37
°F maximum temperature
14
°F minimum temperature
broken clouds
3
hours of sunshine
1
UV index (Low)
0
mm of rainfall expected
32
°F wind chill
7
mph wind from W

Sioux City weather for Wednesday 31st December 2025

Expect broken clouds in Sioux City, Iowa with a maximum temperature of 30°F, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0 cm of snow expected and a gentle breeze of 8 mph from the north.

30
°F maximum temperature
14
°F minimum temperature
broken clouds
0
hours of sunshine
1
UV index (Low)
0
cm of snow expected
23
°F wind chill
8
mph wind from N

Sioux City weather for Thursday 1st January 2026

Expect scattered clouds in Sioux City, Iowa with a maximum temperature of 16°F, maximum UV of 1 (Low) and 8 hours of bright sunshine. There are 0 cm of snow expected and a light breeze of 7 mph from the north.