Earlier this year when I was laid up I bought an indoor / outdoor weather station called Netatmo and wrote about it here. It is a lot of fun and I recommend it highly. It is likely that some of these temperatures are impacted by the sun (although I went to a lot of trouble to keep it out of direct sunlight) although this shouldn't impact the lows which generally occur at night.
I was struck when I looked at the temperature for October - December. I have lived in the midwest my whole life (traveled a lot) and have never seen this many typically cold months so unseasonably warm. We haven't had any days below 20 degrees (or at least not on my balcony). This aligns with my experience at the Bears games, which have almost all been nice and warm (and home losses).
We had one day recently with high winds and blowing sleet that was terrible - it felt like I was being sandblasted. We still have snow and big chunks of rock-hard ice on the ground that haven't melted yet. But that was the exception, and it is likely to all melt away this week.
Not to say that the weather hasn't been rough in other ways - Illinois and the whole midwest faces flooding from continuous rainfall and my parents' basement has been inundated numerous times after being mostly dry for decades.
Cross posted at Chicago Boyz