The National Weather Service in Sioux Falls has confirmed a tornado in Lyon County, Iowa, that occurred during Monday's ...

Monday’s storm system produced two tornadoes in Gregory County and a third near Alvord, Iowa, in Lyon County, the National ...

After heavy storms swept through Sioux Falls many residents are still cleaning up the damage, leaving several with damage to ...

The National Weather Service in Sioux Falls has confirmed a tornado in Lyon County, Iowa, that occurred during Monday's derecho event.

The names of the two men that were involved in a plane crash near New Underwood on Monday have been identified. According to ...

Finally, a day without the threat of severe weather. Since Saturday, the weather service has issued 160 warnings…including 19 ...

The second tornado of the evening, rated EF-1, spawned approximately one mile east of Alvord, Iowa, or 11 miles northeast of Inwood. The tornado was not witnessed by storm chasers or law enforcement, ...

We have had a nice change in pace of weather in KELOLAND today with below average temperatures and minimal humidity. As another shortwave trough moved into western South Dakota, scattered rain showers ...

Severe straight-line winds exceeding 90 mph caused significant damage in Hudson, South Dakota. The storm, part of a larger ...

Sioux Falls Weather Forecasts. Weather Underground provides local & long-range weather forecasts, weatherreports, maps & tropical weather conditions for the Sioux Falls area.