Update as of 7 p.m.: A tornado warning is in effect for parts of Codington County, including Watertown, until 7:30 p.m., the ...

Free tree and branch drop off sites are open in Sioux Falls following severe weather that swept through Sioux Falls Monday ...

A dangerous derecho is expected to form in parts of the Northern Plains and Upper Midwest on Monday, with wind gusts over 75 ...

The thunderstorm risk level went from enhanced to moderate for the area, with timing now pushed back to between 5 p.m. and 1 ...

Todd Heitkamp, a National Weather Service meteorologist, said the line of storms appeared to coalesce into a derecho around Sioux Falls.

The tornado that touched down in Henry Sunday traveled nearly four miles, a new report from the National Weather Service said ...

Severe storms overnight in Iowa caused fallen trees and downed power lines. See storm damage reports from across the state.

SIOUX FALLS, S.D. (KELO) — Severe weather awareness week is approaching and the state of South Dakota will have fewer employees at the National Weather Service, an official said at a Wednesday ...

While two derechos in less than two months is extremely unusual for South Dakota, experts say it's just that — a fluke.

The National Weather Service Sioux Falls forecast shows that the city will be seeing temperatures as high as 70 next week, a record high in February.

Reed Timmer followed this storm throughout the state of South Dakota. He saw strong winds, tornadoes, large hail, and even a ...