Honestly, if you're living in or passing through Oak Brook right now, the view out your window is a bit of a liar. Today, January 15, 2026, looks like a postcard. It's sunny. The sky is that crisp, biting blue you only get when the air is too cold to hold any moisture. But don't let the sunlight fool you into thinking it's actually "nice" out there.
The current temperature is sitting at a steady 23°F. Not exactly tropical. But here is the kicker: with that southwest wind blowing at 7 mph, the feels like temperature is actually 16°F. That is the difference between "I need a coat" and "I can't feel my ears."
If you are planning your week, you’ve basically got to prepare for a classic Illinois roller coaster. We’re looking at a weather in oak brook 10 days stretch that starts with a little bit of everything—sun, snow showers, and a dive into temperatures that will make your furnace work for its paycheck.
What to Expect from the Weather in Oak Brook 10 Days Out
Tonight is when the "sunny" part of the story ends. We are expecting a 40% chance of snow showers as the sun goes down, with the low dropping to 13°F.
🔗 Read more: Dr Dennis Gross C+ Collagen Brighten Firm Vitamin C Serum Explained (Simply)
Tomorrow, Friday, January 16, actually brings a bit of a "warm" spike—if you can call 35°F warm. It’s going to be messy. We’re looking at a 35% chance of snow during the day and a southwest wind picking up to 14 mph. It’s that heavy, wet kind of gray day.
The Deep Freeze Is Coming
By Monday, things get real.
If you have to commute or drop the kids at school, Monday, January 19 is going to be brutal. We are looking at a high of only 8°F and a low of 2°F. When you add in a 20 mph wind coming from the west, that wind chill is going to be well below zero. It’s the kind of cold that hurts your teeth.
💡 You might also like: Double Sided Ribbon Satin: Why the Pro Crafters Always Reach for the Good Stuff
Here is how the next week and a half generally breaks down:
- The Weekend (Jan 17-18): Expect snow showers both days. Highs will struggle to stay in the upper teens (18°F to 19°F). Saturday night will be a chilly 11°F.
- Early Next Week: Monday is the bottom of the pit at 8°F. Tuesday bounces back slightly to 21°F, but it’ll stay mostly cloudy.
- Midweek Moisture: Wednesday, January 21 brings more light snow with a high of 31°F.
- The Long Tail: Moving into Thursday and Friday (Jan 22-23), we stay in that "freezing but not sub-zero" zone with highs around 30°F to 32°F and consistent chances for snow showers.
Why Oak Brook Weather Is So Weird Right Now
A lot of people think that because we aren't right on Lake Michigan, we escape the "Lake Effect" chaos. Kinda, but not really. We’re close enough that we get the moisture, but far enough that we often get the "clipper" systems moving in from the west with more force.
The humidity is hovering around 51% right now, but it's expected to jump up to 77% tomorrow. That’s why the snow on Friday is going to feel so much "heavier" than the light flurries we might see later tonight.
📖 Related: Dining room layout ideas that actually work for real life
Survival Steps for the Next 10 Days
You don't need a weather station to tell you it's cold, but you do need a plan.
- Check the West Wind: Monday’s 20 mph west wind is no joke. If your house faces west, check your window seals now.
- Salt the Driveway Early: With Friday’s high of 35°F dropping to 18°F at night, anything that melts is going to turn into a skating rink by Saturday morning.
- The Layer Rule: Since we have highs ranging from 8°F to 35°F this week, don't just wear one giant coat. You’ll sweat on Friday and freeze on Monday. Use a moisture-wicking base.
Honestly, the best thing you can do is get your grocery shopping done today while it's still sunny and above 20 degrees. Once that Monday deep freeze hits, you won't want to be standing in a parking lot loading bags into your trunk.
Keep an eye on the wind speeds for Monday specifically. That's the day where travel delays are most likely, not because of the snow, but because of the extreme cold affecting car batteries and diesel engines.
Stay warm, Oak Brook. It’s going to be a long ten days.