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.
Read More...

Hazardous Weather Conditions

Current Conditions

En Español

Share |

Yankton SD

7 Day Forecast

For More Weather Information:

Sioux Falls, SD Local Forecast Office

Overnight

Mostly Cloudy

Mostly
Cloudy

Low: 40 °F

Sunday

Chance Rain Chance for Measurable Precipitation 40%

Chance
Rain

High: 43 °F

Sunday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: 22 °F

Monday

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

High: 26 °F

Monday
Night

Blustery

Blustery

Low: 16 °F

Tuesday

Partly Sunny

Partly
Sunny

High: 36 °F

Tuesday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: 24 °F

Wednesday

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

High: 34 °F

Wednesday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: 16 °F

Detailed Forecast

  • Overnight Mostly cloudy, with a low around 40. West southwest wind around 10 mph.
  • Sunday A chance of rain, mainly before noon. Partly sunny, with a high near 43. Breezy, with a west northwest wind 15 to 20 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 40%.
  • Sunday Night A slight chance of snow after midnight. Mostly cloudy, with a low around 22. Windy, with a northwest wind 25 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 20%.
  • Monday A slight chance of snow before noon. Mostly cloudy, with a high near 26. Windy, with a northwest wind 20 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 20%.
  • Monday Night Partly cloudy, with a low around 16. Blustery, with a west wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.
  • Tuesday Partly sunny, with a high near 36.
  • Tuesday Night A slight chance of snow. Mostly cloudy, with a low around 24. Chance of precipitation is 20%.
  • Wednesday A slight chance of snow. Mostly cloudy, with a high near 34. Chance of precipitation is 20%.
  • Wednesday Night A slight chance of snow. Mostly cloudy, with a low around 16. Chance of precipitation is 20%.
  • Thanksgiving Day Partly sunny, with a high near 21.
  • Thursday Night Partly cloudy, with a low around 10.
  • Friday Mostly sunny, with a high near 28.
  • Friday Night Partly cloudy, with a low around 14.
  • Saturday Partly sunny, with a high near 27.