Lake-effect snow is zeroing in on Chicago's Lake Michigan shoreline Saturday morning, January 31, 2026, as a narrow but potent band pushes onshore. The bullseye is on the Cook County lakeshore and downtown, where fast-forming bands can bring sudden visibility drops and quick snow buildups. Temperatures will top out near 25°F, but gusty winds and wind chill will make it feel colder and could blow snow across major roads.
What To Expect Today
A Winter Weather Advisory is in effect for much of Cook County through Saturday, January 31, 2026, at 4 p.m. CST, with new snow accumulations of 2 to 4 inches possible near the lakeshore and some localized higher amounts. Forecasters say snowfall rates over 1 inch per hour are possible inside the main lake-effect band, and north-northwest winds of 10 to 15 mph with gusts up to 25 mph could sharply cut visibility. For the latest advisory and forecast details, check the National Weather Service.
Commute And Safety
Roads, especially bridges and overpasses, are likely to turn slick, so build in extra travel time and ease off the gas when snow is falling. Plow crews will focus on major routes first, which means neighborhood streets may stay snow-covered longer than the main arteries. Before you head out, take a look at the Illinois Department of Transportation’s Getting Around Illinois map for live road conditions and closure updates.
Latest Update
Forecasters bumped the advisory start time earlier to 5 a.m. as the lake-effect band moved in, widening the window for heavier, localized snow along the shoreline, according to the National Weather Service. For more on the broader storm setup and how it is affecting regional travel and flights, see our larger storm pattern.
What Happens Next
The lake-effect band is expected to weaken through the afternoon, with only scattered snow showers tonight and lighter accumulations away from the lakeshore. This post will be updated if advisories change. If you need to travel this afternoon, plan on extra time and keep an eye on local forecasts.
