Sioux City weather live forecast

Today's maximum temperature in Sioux City is expected to be 32°C. Select a day from the live weather forecast for Sioux City, Iowa, USA for more weather parameters.

Monday
25th May
32

17

9

UV7
Tuesday
26th May
31

18

15

UV8
Wednesday
27th May
31

17

12

UV8
Thursday
28th May
29

17

8

UV6
Friday
29th May
26

18

2

UV4

5-day weather forecast updated at 04:01 on Monday 25th May 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 Monday 25th May 2026

Expect isolated thunderstorms in Sioux City, Iowa with a maximum temperature of 32°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 9 hours of bright sunshine. There are 2-5 mm of rainfall expected with 70% chance of some rain and a gentle breeze of 16 kph from the south.

32
°C maximum temperature
17
°C minimum temperature
isolated thunderstorms
9
hours of sunshine
UV7
UV index (High)
70
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
16
kph wind from S

Sioux City weather for Tuesday 26th May 2026

Expect scattered clouds in Sioux City, Iowa with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 15 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south.

31
°C maximum temperature
18
°C minimum temperature
scattered clouds
15
hours of sunshine
UV8
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
16
kph wind from S

Sioux City weather for Wednesday 27th May 2026

Expect scattered clouds in Sioux City, Iowa with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the south-east.

31
°C maximum temperature
17
°C minimum temperature
scattered clouds
12
hours of sunshine
UV8
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
11
kph wind from SE

Sioux City weather for Thursday 28th May 2026

Expect broken clouds in Sioux City, Iowa with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south-east.

29
°C maximum temperature
17
°C minimum temperature
broken clouds
8
hours of sunshine
UV6
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
16
kph wind from SE

Sioux City weather for Friday 29th May 2026

Expect isolated thunderstorms in Sioux City, Iowa with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 5-10 mm of rainfall expected with 51% chance of some rain and a light breeze of 12 kph from the south-east.