The weather pattern will be rather quiet over the next couple of days with some milder afternoons featuring highs in the low 60s and overnight lows in the middle 30s to around 40. The only feature of note through Tuesday night will be some patches of frost or fog each night.
Our next weather system will arrive Wednesday along the leading edge of a strong push of cool Canadian air. This will bring scattered showers our direction through much of Wednesday and even early Thursday. All told, most will only see less than a couple tenths of an inch of rain.
The cooler air rushing in behind the system will set up a cold Northerly wind, kickstarting lake-effect precipitation on the Southern coasts of the Great Lakes. Some of this Canadian air may be just cold enough to mix in some pockets of snowflakes, which would mark the first of the season for some. Far Northern Illinois looks to be just far enough removed from the moisture Friday and Saturday, which should keep us dry compared to those East of us. But it will be cold and breezy with afternoon highs only in the middle 40s Thursday through Saturday.
I know we may not want to talk about "s-n-o-w" quite yet, but it will be here before we know it! On average, Rockford sees its first trace of snow around Halloween and the first 1" snowfall around early December. The earliest measurable snow in Rockford's history was October 12th, 1909. One year ago today brought Rockford's first snow of the 2025-26 winter season, with 1.2" falling at the airport. So, at the very least, this season's first snow will be a bit later compared to last year.
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