Hey Chicago, winter is about to show us who’s boss. A polar vortex is heading our way, bringing bone-chilling temperatures and icy conditions that could make the next few days tough to get through. If you haven’t started preparing, now’s the time. Here’s everything you need to know to stay safe and warm.

The Forecast: What to Expect
Here’s a breakdown of what’s coming our way:
- Thursday: A mild day by winter standards. Highs will reach 36°F with breezy conditions. If you’ve got errands to run, today’s the day. Overnight lows will dip to 24°F.
- Friday: Partly sunny skies and a high of 41°F. It’ll be windy, but still tolerable. Lows will drop to 24°F overnight, setting the stage for the weekend cold.
- Saturday: The Arctic air starts rolling in. Highs will only hit 28°F, and the low will plunge to 7°F. Clouds will dominate, and a few flurries are possible.
- Sunday: This is where things get serious. Highs will struggle to reach 11°F, and lows will plummet to -3°F. Add breezy conditions, and it’ll feel even colder. Stay inside if you can.
- Monday: The bitter cold continues, with a high near 15°F and a low of -6°F. Frostbite risks will be high, so make sure to bundle up if you have to go out.
- Tuesday: Sunshine returns, but it won’t help much. Highs will hover around 11°F, with lows near 2°F.
- Wednesday: Finally, a bit of relief. Highs will climb to 28°F, and lows will stay around 21°F. It’s still cold, but not as brutal.
Why This Cold Snap Matters
This isn’t your typical winter chill—these are extreme, dangerous conditions. Temperatures this low can cause frostbite in just minutes if you’re not properly dressed. Hypothermia is also a serious risk, especially for people without shelter or proper heating. Roads and sidewalks will likely be icy, so getting around could be tricky.
How to Stay Safe During the Arctic Blast
- Dress Smart: Layers are your best friend. Wear a warm coat, gloves, a scarf, and a hat. Thick socks and insulated boots will help keep your feet warm. Cover as much skin as possible to avoid frostbite.
- Stay Inside When You Can: If you don’t need to be outside, stay home. If you have to go out, limit your time in the cold.
- Prep Your Home: Double-check your heating system to make sure it’s working. Insulate any exposed pipes to prevent them from freezing, and stock up on groceries, water, and blankets in case you need them.
- Drive Safely: Snow and ice are going to make driving tricky. Slow down, keep plenty of distance between you and other cars, and avoid unnecessary trips if possible.
- Check on Neighbors: Cold weather is especially hard on older adults and people living alone. A quick visit or call can make sure they’re safe and have what they need.
What You Should Do Now
Chicago, this cold snap is going to be one of the toughest we’ve faced in a while, but we’ve been through harsh winters before, and we’ll get through this one too. Use the next day or two to prepare—whether that’s grabbing groceries, testing your heater, or pulling out your warmest winter gear.

The Arctic blast will pass eventually, but until then, staying prepared will make all the difference. Stay safe, stay warm, and don’t forget to check on friends and neighbors. This is Chicago—we’ve got this!