Sioux County, Iowa: tornado and severe weather warnings

A freeze warning is in effect for Sioux County as of 4:17 PM CDT.

Open the live map on Sioux County Get a message when a warning reaches your address

The map shows radar, every warning shape, and the path and arrival time of each storm cell headed toward the center of Sioux County. Tap your own street on it for times that apply to you.

The last 12 months in Sioux County

• 1 tornado warnings
• 46 severe thunderstorm warnings
• 2 flash flood warnings
• 3 tornado watches
• 14 severe thunderstorm watches

The most recent tornado warning that included Sioux County was issued Sep 1, 2026 by the Weather Service office in Sioux Falls, SD.

A warning counts here if the Weather Service listed Sioux County in it, even if the warned area covered only part of the county.

Nearby

• Lyon County, IA
• Plymouth County, IA
• O'Brien County, IA
• Union County, SD
• Lincoln County, SD
• Osceola County, IA
• Cherokee County, IA
• Rock County, MN
• All of Iowa

Alerts come from the National Weather Service and refresh every minute. Past warnings come from the Iowa Environmental Mesonet's archive of Weather Service products. During a warning, also listen to local radio, TV or a weather radio.