Sioux Falls weather live forecast

Tomorrow's maximum temperature in Sioux Falls is expected to be 21°C.

  • Thursday
    15th May
    Isolated thunderstorms (30-40 mm of rainfall expected)
  • Friday
    16th May
    Mostly cloudy with light rain (2-5 mm of rainfall expected)
  • Saturday
    17th May
    Overcast skies
  • Sunday
    18th May
    Scattered clouds
  • Monday
    19th May
    Isolated thunderstorms (2-5 mm of rainfall expected)

5-day weather forecast updated at 04:01 on Thursday 15th May 2025 GMT

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The 5-day weather forecast for South Dakota (Sioux Falls) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Sioux Falls weather forecast by day

Below are the detailed weather forecasts for Sioux Falls for the next 5 days.

Sioux Falls weather for Thursday 15th May 2025

Expect isolated thunderstorms in Sioux Falls, South Dakota with a maximum temperature of 21°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 30-40 mm of rainfall expected with 71% chance of some rain and a strong breeze of 44 kph from the west.

  • 21°C maximum temperature21
    °C maximum temperature
  • 13°C minimum temperature13
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 71% chance of some rain71
    % chance of some rain
  • 30-40 mm of rainfall expected<40
    mm of rainfall expected
  • 21°C wind chill21
    °C wind chill
  • Strong breeze of 44 kph from the West44
    kph wind from W

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Sioux Falls weather for Friday 16th May 2025

Expect mostly cloudy with light rain in Sioux Falls, South Dakota with a maximum temperature of 13°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 73% chance of some rain and a strong breeze of 40 kph from the west.

  • 13°C maximum temperature13
    °C maximum temperature
  • 8°C minimum temperature8
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 73% chance of some rain73
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Strong breeze of 40 kph from the West40
    kph wind from W

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Sioux Falls weather for Saturday 17th May 2025

Expect overcast skies in Sioux Falls, South Dakota with a maximum temperature of 15°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 29 kph from the north-west.

  • 15°C maximum temperature15
    °C maximum temperature
  • 7°C minimum temperature7
    °C minimum temperature
  • Overcast skies
    overcast skies
  • 1 hour of bright sunshine1
    hour of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Fresh breeze of 29 kph from the North-West29
    kph wind from NW

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Sioux Falls weather for Sunday 18th May 2025

Expect scattered clouds in Sioux Falls, South Dakota with a maximum temperature of 19°C, maximum UV of 8 (Very High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 27 kph from the east.

  • 19°C maximum temperature19
    °C maximum temperature
  • 5°C minimum temperature5
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 13 hours of bright sunshine13
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 27 kph from the East27
    kph wind from E

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Sioux Falls weather for Monday 19th May 2025

Expect isolated thunderstorms in Sioux Falls, South Dakota with a maximum temperature of 16°C, maximum UV of 3 (Moderate) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 96% chance of some rain and a fresh breeze of 33 kph from the east.

  • 16°C maximum temperature16
    °C maximum temperature
  • 11°C minimum temperature11
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 3 (Moderate)3
    UV index (Moderate)
  • 96% chance of some rain96
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Fresh breeze of 33 kph from the East33
    kph wind from E

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

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