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Extreme Cold Watch Issued in the USA as Southeast Wisconsin

Extreme Cold Watch Issued in the USA as Southeast Wisconsin braces for a 65-hour arctic blast. Wind chills may drop to –40.

Extreme Cold Watch Issued in the USA as Southeast Wisconsin braces for a 65-hour arctic blast. Wind chills may drop to –40.

BeInCareer News Breaking USA • Weather Alert

Extreme Cold Watch: Southeast Wisconsin Braces for –40 Wind Chills During 65-Hour Cold Snap

Updated: Jan 21, 2026 By BeInCareer News Desk Read time: 4–6 min
Wind chills: –25 to –40 Duration: 65+ hours Risk: Frostbite minutes Warming centers: 24/7
Latest update
Last refreshed: Jan 21, 2026 • 1:15 AM CST

Southeastern Wisconsin is preparing for an arctic blast with wind chills forecast to drop between –25 and –40. Officials are urging residents to limit outdoor exposure and use warming centers if needed.

What to Know (Quick Summary)

Alert
Extreme Cold Watch/Warning in effect
Wind chills could reach –40. Outdoor exposure can become hazardous quickly.
Duration
65+ hours below zero wind chills
The cold snap is expected to persist from Thursday night through Saturday morning.
Community
Warming centers open 24/7
Local officials have opened centers for residents needing shelter or heat support.

Full Story

After Wednesday’s snowfall brought light accumulation across parts of southeastern Wisconsin, the bigger concern now is the incoming arctic air. Forecasts indicate a sharp drop in temperatures beginning Thursday night as a Canadian high-pressure system pushes bitterly cold air into the region.

Wind chills are expected to remain below zero for more than 65 hours, with the lowest values potentially reaching –40. These conditions can increase the risk of frostbite and hypothermia, especially for people outdoors for extended periods.

News Fact Box
Use this section for verified points
  • Wind chills: –25 to –40 (forecast range)
  • Peak risk window: Thursday night to Saturday morning
  • Public support: Warming centers open 24/7
  • Schools: Closures/delays possible depending on morning conditions

Officials recommend limiting outdoor exposure, wearing multiple layers, and ensuring pets are kept indoors. Residents are also encouraged to check on neighbors, especially elderly individuals and anyone without reliable heating.

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Timeline: What Happens When

Wednesday Evening
Light snow possible (powdery; visibility generally OK).
Thursday Night
Arctic air arrives; wind chills fall rapidly below zero.
Friday Morning
Highest risk for commuters/students; closures may be considered.
Saturday
Slow moderation begins, but cold remains significant.
Sunday
Still below normal; a few flurries possible as temps slowly rise.

Safety Tips During Extreme Cold

Dress for wind chills
Wear layers, insulated outerwear, gloves, and a face covering.
Limit time outdoors
Keep exposure short. Frostbite risk rises quickly at –30 and below.
Use warming centers
If home heat is unreliable, use public warming facilities.
Check on others
Elderly neighbors and outdoor workers are higher-risk groups.
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FAQ: Extreme Cold Watch in the USA

What does an Extreme Cold Watch mean for Southeast Wisconsin?
It means dangerously low wind chills are possible and residents should prepare for conditions that can cause frostbite and hypothermia during the 65-hour cold snap.
How cold is –40 wind chill and why is it dangerous?
–40 wind chill can cause skin to freeze quickly. Staying outdoors for long periods without proper clothing significantly increases frostbite risk.
Will schools close due to the extreme cold warning?
Closures or delays are possible if wind chills remain extremely low during morning commute hours. Decisions vary by district and timing.

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