South Dakota – Breath crystallizes instantly, and metal stings to the touch as a dangerous Arctic blast settles over the eastern plains. The cold feels heavier today, pressing into daily routines and forcing quick decisions outdoors.
According to the National Weather Service in Sioux Falls, an Extreme Cold Warning is in effect from midnight through mid-morning Friday. Wind chills may plunge as low as 35 to 40 degrees below zero across eastern South Dakota, northwest Iowa, southwest Minnesota, and nearby areas. Exposed skin can develop frostbite in as little as 10 minutes.
Early morning readings hover near 8 degrees in Sioux Falls, but northwest winds push wind chills close to minus 20 and falling. Patchy blowing snow and flurries may briefly reduce visibility, especially on open roads and rural highways. Travel remains possible, but conditions turn dangerous fast if vehicles stall or exposure is prolonged.
Cold intensifies into tonight. Temperatures drop toward 17 below zero, with wind chills nearing 32 below by daybreak. Friday stays brutally cold, with highs near 3 below and little relief from the wind. Any snowmelt refreezes quickly, increasing slick spots on untreated roads and sidewalks.
The cold lingers into the weekend. Saturday brings partial sunshine but little warmth, with highs near 7 degrees. Sunday remains frigid, topping out near 7 again, while overnight lows dip close to 9 below. Wind chills remain hazardous during morning and evening hours.
Some moderation arrives early next week. Monday climbs near 22 under mostly sunny skies, offering a noticeable break, though winter conditions persist. Gradual warming continues into Tuesday, but refreezing risks remain after sunset.
Residents should dress in full winter gear, cover all exposed skin, and keep emergency supplies in vehicles. Check on neighbors and bring pets indoors. Feeling the cold where you are today? Share what conditions are like in your area.
Five-Day Outlook for Sioux Falls, South Dakota
Today: Patchy blowing snow, high near 14.
Friday: Bitterly cold, high near -3.
Saturday: Partly sunny, high near 7.
Sunday: Mostly sunny, high near 7.
Monday: Mostly sunny, high near 22.
