Sioux City weather live forecast

Today's maximum temperature in Sioux City is expected to be 19°C. Select a day from the live weather forecast for Sioux City, Iowa, USA for more weather parameters.

5-day weather forecast updated at 04:01 on Saturday 6th September 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 Saturday 6th September 2025

Expect scattered clouds in Sioux City, Iowa with a maximum temperature of 19°C, maximum UV of 4 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the north-west.

  • 19°C maximum temperature19
    °C maximum temperature
  • 7°C minimum temperature7
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 13 kph from the North-West13
    kph wind from NW

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Sioux City weather for Sunday 7th September 2025

Expect broken clouds in Sioux City, Iowa with a maximum temperature of 21°C, maximum UV of 6 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south-east.

  • 21°C maximum temperature21
    °C maximum temperature
  • 6°C minimum temperature6
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Light breeze of 12 kph from the South-East12
    kph wind from SE

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Sioux City weather for Monday 8th September 2025

Expect isolated thunderstorms in Sioux City, Iowa with a maximum temperature of 26°C, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 59% chance of some rain and a moderate breeze of 24 kph from the south.

  • 26°C maximum temperature26
    °C maximum temperature
  • 15°C minimum temperature15
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 59% chance of some rain59
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • 26°C wind chill26
    °C wind chill
  • Moderate breeze of 24 kph from the South24
    kph wind from S

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Sioux City weather for Tuesday 9th September 2025

Expect isolated thunderstorms in Sioux City, Iowa with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 5 (Moderate) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a gentle breeze of 14 kph from the south.

  • 27°C maximum temperature27
    °C maximum temperature
  • 17°C minimum temperature17
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 6 hours of bright sunshine6
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 25% chance of some rain25
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Gentle breeze of 14 kph from the South14
    kph wind from S

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Sioux City weather for Wednesday 10th September 2025

Expect isolated thunderstorms in Sioux City, Iowa with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 4 (Moderate) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 32% chance of some rain and a light breeze of 11 kph from the south-east.

  • 28°C maximum temperature28
    °C maximum temperature
  • 16°C minimum temperature16
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 32% chance of some rain32
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Light breeze of 11 kph from the South-East11
    kph wind from SE

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Metric (°C / mm)  |  Imperial (°F / inches)

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