National Weather Service United States Department of Commerce

The flash flooding threat will begin moving east out of the Plains into the Upper Midwest and Great Lakes on Thursday

Flash flooding will continue to be possible on Thursday but will begin moving out of the central and northern Plains. The area of concern will be the Upper Midwest edging into the the eastern Great Lakes region. 1 to 2 inches of rainfall will be possible into Friday.
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Hazardous Weather Conditions

Current Conditions

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Sioux Falls SD

7 Day Forecast

For More Weather Information:

Sioux Falls, SD Local Forecast Office

Tonight

Thunderstorms Chance for Measurable Precipitation 90%

Thunderstorms

Low: 66 °F

Thursday

Thunderstorms Chance for Measurable Precipitation 90%

Thunderstorms

High: 75 °F

Thursday
Night

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

Low: 63 °F

Friday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 80 °F

Friday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 61 °F

Saturday

Mostly Sunny

Mostly
Sunny

High: 81 °F

Saturday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 66 °F

Sunday

Chance Thunderstorms Chance for Measurable Precipitation 50%

Chance
Thunderstorms

High: 79 °F

Sunday
Night

Thunderstorms Likely Chance for Measurable Precipitation 60%

Thunderstorms
Likely

Low: 60 °F

Detailed Forecast

  • Tonight Showers and thunderstorms, mainly after 3am. Low around 66. East southeast wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
  • Thursday Showers and thunderstorms, mainly before 3pm. High near 75. East wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
  • Thursday Night A chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 63. North northeast wind around 5 mph becoming south southwest after midnight. Chance of precipitation is 40%.
  • Friday A slight chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 80. North wind around 5 mph. Chance of precipitation is 20%.
  • Friday Night A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 61. Northeast wind around 5 mph. Chance of precipitation is 20%.
  • Saturday Mostly sunny, with a high near 81.
  • Saturday Night A slight chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 20%.
  • Sunday A chance of showers and thunderstorms. Mostly cloudy, with a high near 79. Chance of precipitation is 50%.
  • Sunday Night Showers and thunderstorms likely. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
  • Labor Day Mostly sunny, with a high near 75.
  • Monday Night A slight chance of showers and thunderstorms. Partly cloudy, with a low around 55. Chance of precipitation is 20%.
  • Tuesday A chance of showers and thunderstorms. Partly sunny, with a high near 75. Chance of precipitation is 30%.
  • Tuesday Night Partly cloudy, with a low around 57.
  • Wednesday Mostly sunny, with a high near 78.