South Dakota weather

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Below are the temperatures expected today at popular destinations in South Dakota. Select a destination to compare today's forecast with average weather conditions.

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The weather guide for South Dakota shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by MeteoBlue. Find out more about our data sources.

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Which is the hottest month in South Dakota?

The hottest time of year in Sioux Falls, South Dakota is normally July. Expect maximum daytime temperatures to reach 30°C with moderate heat and humidity.

Which month has the most rain in South Dakota?

In terms of rainfall, June is usually the wettest month in Sioux Falls, South Dakota with 92mm on average. There are normally 11 days in June with some rain.

When is it sunniest in South Dakota?

The sunniest time of year in Sioux Falls, South Dakota is normally July with bright sunshine on average for 74% of daylight hours; that's 11 hours of sunshine per day.

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

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Compare South Dakota weather with the USA

Below the South Dakota weather chart shows average maximum daytime temperature for South Dakota, USA (Sioux Falls) and the USA (Washington).

Maximum daytime temperature (°C)

South Dakota, USA (Sioux Falls)
USA (Washington)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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

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