Sioux City weather live forecast

Today's maximum temperature in Sioux City is expected to be 31°C. Select a day from the live weather forecast for Sioux City, Iowa, USA for more weather parameters.

5-day weather forecast updated at 04:02 on Monday 29th 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 Monday 29th September 2025

Expect scattered clouds in Sioux City, Iowa with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south.

  • 31°C maximum temperature31
    °C maximum temperature
  • 16°C minimum temperature16
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Light breeze of 12 kph from the South12
    kph wind from S

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Sioux City weather for Tuesday 30th September 2025

Expect broken clouds in Sioux City, Iowa with a maximum temperature of 26°C, maximum UV of 4 (Moderate) and no hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the south.

  • 26°C maximum temperature26
    °C maximum temperature
  • 17°C minimum temperature17
    °C minimum temperature
  • Broken clouds
    broken clouds
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 26°C wind chill26
    °C wind chill
  • Gentle breeze of 18 kph from the South18
    kph wind from S

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Sioux City weather for Wednesday 1st October 2025

Expect scattered clouds in Sioux City, Iowa with a maximum temperature of 29°C, low levels of heat & humidity, maximum UV of 5 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the south.

  • 29°C maximum temperature29
    °C maximum temperature
  • 16°C minimum temperature16
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Moderate breeze of 21 kph from the South21
    kph wind from S

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Sioux City weather for Thursday 2nd October 2025

Expect clear skies in Sioux City, Iowa with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 5 (Moderate) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the south.

  • 31°C maximum temperature31
    °C maximum temperature
  • 17°C minimum temperature17
    °C minimum temperature
  • Clear skies
    clear skies
  • 12 hours of bright sunshine12
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Moderate breeze of 20 kph from the South20
    kph wind from S

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Sioux City weather for Friday 3rd October 2025

Expect clear skies in Sioux City, Iowa with a maximum temperature of 32°C, moderate levels of heat & humidity, maximum UV of 5 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 27 kph from the south.

  • 32°C maximum temperature32
    °C maximum temperature
  • 19°C minimum temperature19
    °C minimum temperature
  • Clear skies
    clear skies
  • 11 hours of bright sunshine11
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Moderate breeze of 27 kph from the South27
    kph wind from S

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

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