Chicago is about to eaxperience one of its harshest winter weeks yet, as an Arctic front moves in, bringing extreme cold, blistering winds, and snowfall.
If you thought this winter had already been bad, brace yourself—temperatures will drop below zero, and wind chills will make it feel even worse. Hypothermia and frostbite will be real dangers, especially for those who don’t take the right precautions.
Light snowfall is also expected midweek, which could make roads dangerously slick. For those commuting, icy conditions combined with brutal cold will make for treacherous travel.
A Breakdown of Chicago’s Deep Freeze This Week
Monday, February 17 – Bitter Cold Arrives
A frigid start to the week, with morning temperatures around 12°F (-11°C), but wind chills will make it feel even colder. The afternoon high will barely reach 12°F (-11°C), and by night time, it will plunge to -3°F (-19°C).
Tuesday, February 18 – No Warm-Up in Sight
The morning starts off painfully cold at 10°F (-12°C), and the afternoon high won’t do much better. With icy winds cutting through the city, it will feel even colder than the thermometer reads.
Wednesday, February 19 – Light Snow, Same Bitter Cold
Expect cloudy skies and frigid air in the morning, with temperatures at 13°F (-10°C). Snowfall is expected throughout the day, adding a layer of slick, icy conditions to an already freezing city.
By night, the temperature will drop even further, hitting a low of 3°F (-16°C).
Thursday, February 20 – The Worst of the Cold Lingers
Morning lows will start around 19°F (-7°C), but wind chills will make it feel much worse. The high for the day won’t break 19°F (-7°C), even with sunshine in the afternoon.
Friday, February 21 & Saturday, February 22 – Still No Break From the Cold
The weekend will bring slightly “warmer” temperatures, but don’t expect anything pleasant. Highs will struggle to get into the 20s, and overnight lows will still be in the single digits.

Why This Cold Snap is Dangerous for Chicago
Brutal Wind Chills – Gusty winds will make already freezing temperatures feel much colder. Even a short time outside could put people at risk of frostbite.
Icy Roads & Treacherous Travel – With snow expected on Wednesday, any untreated roads and sidewalks will turn into ice rinks.
Power Grid Strain & Heating Risks – With everyone cranking up the heat, the power grid will be under pressure. Residents using space heaters or fireplaces should be extra cautious about fire hazards.
Frostbite & Hypothermia Risks – In these extreme conditions, frostbite can develop in less than 10 minutes. Make sure to layer up, wear gloves, and cover exposed skin if going outside.
How to Stay Safe During Chicago’s Brutal Cold Snap
Limit Time Outdoors – If possible, stay indoors, especially during the coldest parts of the day.
Layer Up Properly – If you must go outside, wear multiple layers, cover your hands, head, and face, and protect exposed skin.
Check on Neighbors and Pets – Elderly individuals and pets are most at risk in extreme cold. Make sure everyone has access to warmth and shelter.
Prepare for Possible Power Outages – Stock up on batteries, blankets, and emergency supplies, just in case.
Be Extra Cautious on the Roads – Ice is expected on Wednesday, so drive slow and avoid unnecessary trips.
Final Thoughts: A Brutal Winter Week Ahead for Chicago
Chicago is no stranger to cold, but this week’s Arctic blast will be particularly dangerous. The combination of subzero temperatures, blistering wind chills, and icy roads will make it one of the toughest stretches of winter so far.
Now is the time to prepare. Stay inside when you can, dress warmly, and keep an eye on updates. This isn’t just another cold spell—this is winter at its most unforgiving.