Extreme Cold Watch

Locations Affected

Sioux Falls, SD ∙ Sioux City, IA ∙ Brunsville, IA ∙ Granville, IA ∙ Fairfax, SD ∙ Hartley, IA ∙ Delmont, SD ∙ Okoboji, IA ∙ Emery, SD ∙ Irene, SD

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Sioux Falls SD 1143 AM CST Wed Jan 21 2026 ...EXTREME COLD WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY AFTERNOON... * WHAT...Dangerously cold wind chills as low as 42 below zero possible. * WHERE...Portions of northwest Iowa, southwest Minnesota, and central, east central, and southeast South Dakota. * WHEN...From Thursday evening through Friday afternoon. * IMPACTS...The dangerously cold wind chills as low as 40 below zero could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Dress in layers including a hat, face mask, and gloves if you must go outside.

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