Welcome to Sioux Falls.  Please click here for the current weather conditions.

Sioux Falls, South Dakota climate is warm during summer when temperatures tend to be in the 70's and cold during winter when temperatures tend to be in the 10's.

On average, the warmest month of the year is July with a maximum temperature of 85.60 °F, while the coldest month of the year is January with a minimum temperature of 2.90 °F.

Temperature variations between night and day tend to be moderate during summer with a difference that can reach 25 °F, and moderate during winter with an average difference of 22 °F.

The annual average precipitation at Sioux Falls is 24.69 inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is June with an average rainfall of 3.49 inches.