National Weather Service United States Department of Commerce

Heavy rain and flash flooding possible in the Desert Southwest and Great Lake States this evening and tonight

A slow moving cold front may bring heavy rain and localized flooding Wednesday to portions of the Great Plains. More heavy rain will be possible in the Desert Southwest again Wednesday. Hot temperatures will continue in the Mississippi Valley - and spread up the east coast Wednesday.
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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

Today

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

High: 74 °F

Tonight

Thunderstorms Chance for Measurable Precipitation 90%

Thunderstorms

Low: 65 °F

Thursday

Thunderstorms Likely Chance for Measurable Precipitation 60%

Thunderstorms
Likely

High: 74 °F

Thursday
Night

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

Low: 61 °F

Friday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 79 °F

Friday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 58 °F

Saturday

Mostly Sunny

Mostly
Sunny

High: 79 °F

Saturday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 61 °F

Sunday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 80 °F

Detailed Forecast

  • Today A chance of showers and thunderstorms, mainly after 11am. Mostly cloudy, with a high near 74. East wind 5 to 10 mph. Chance of precipitation is 40%.
  • Tonight Showers and thunderstorms, mainly after 9pm. Low around 65. 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 likely, mainly before 10am. Cloudy, with a high near 74. East northeast wind 5 to 10 mph. Chance of precipitation is 60%. 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 61. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
  • Friday A slight chance of showers and thunderstorms. Mostly sunny, with a high near 79. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 20%.
  • Friday Night A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 58. Chance of precipitation is 20%.
  • Saturday Mostly sunny, with a high near 79.
  • Saturday Night A slight chance of showers and thunderstorms. Partly cloudy, with a low around 61. Chance of precipitation is 20%.
  • Sunday A slight chance of showers and thunderstorms. Mostly sunny, with a high near 80. Chance of precipitation is 20%.
  • Sunday Night A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
  • Labor Day A chance of showers and thunderstorms. Partly sunny, with a high near 78. Chance of precipitation is 30%.
  • Monday Night A slight chance of showers and thunderstorms. Partly cloudy, with a low around 58. Chance of precipitation is 20%.
  • Tuesday A slight chance of showers and thunderstorms. Mostly sunny, with a high near 77. Chance of precipitation is 20%.