National Weather Service United States Department of Commerce

Developing storm will spread rain across eastern U.S.; thunderstorms in the Southeast

A storm system developing in the South will move up the Mississippi River Valley on Sunday bringing rainfall to much of the eastern U.S., along with thunderstorms in the southeastern states. Some of the thunderstorms in the Southeast could produce large hail, damaging wind and heavy rain.
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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

Patchy Fog

Patchy
Fog

Low: 35 °F

Sunday

Chance Rain Chance for Measurable Precipitation 50%

Chance
Rain

High: 41 °F

Sunday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: 18 °F

Monday

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

High: 22 °F

Monday
Night

Blustery

Blustery

Low: 12 °F

Tuesday

Partly Sunny

Partly
Sunny

High: 32 °F

Tuesday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: 22 °F

Wednesday

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

High: 30 °F

Wednesday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: 12 °F

Detailed Forecast

  • Tonight Patchy fog. Otherwise, mostly cloudy, with a low around 35. South wind 5 to 10 mph.
  • Sunday A chance of rain, mainly between 7am and noon. Mostly cloudy, with a high near 41. Breezy, with a northwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 50%.
  • Sunday Night A slight chance of snow after midnight. Mostly cloudy, with a low around 18. Windy, with a northwest wind 20 to 30 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.
  • Monday A slight chance of snow before noon. Cloudy, with a high near 22. Blustery, with a northwest wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.
  • Monday Night Partly cloudy, with a low around 12. Blustery, with a northwest wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.
  • Tuesday Partly sunny, with a high near 32.
  • Tuesday Night A slight chance of snow. Mostly cloudy, with a low around 22. Chance of precipitation is 20%.
  • Wednesday A slight chance of snow. Partly sunny, with a high near 30. Chance of precipitation is 20%.
  • Wednesday Night A slight chance of snow. Mostly cloudy, with a low around 12. Chance of precipitation is 20%.
  • Thanksgiving Day Mostly sunny, with a high near 17.
  • Thursday Night Partly cloudy, with a low around 5.
  • Friday Mostly sunny, with a high near 24.
  • Friday Night Partly cloudy, with a low around 10.
  • Saturday Partly sunny, with a high near 23.