Weather
Illinois Weather: Chicago Turns Cool and Dry Following High Swim Risk Along Lake Michigan Beaches
Chicago, Illinois – Following a damp start to the week, the region is transitioning to drier conditions that will persist for the next several days. While…
By Cameron Hayes · 2026-09-21T20:40:02.282Z
Chicago, Illinois – Following a damp start to the week, the region is transitioning to drier conditions that will persist for the next several days. While Monday remains breezy with a high swim risk along Lake Michigan beaches, conditions will quickly improve as sunshine begins to return.
According to the National Weather Service in Chicago , temperatures will hold in a seasonally cool range, with highs hovering between 61 and 72 degrees through Friday. The lingering high swim risk today serves as a reminder to avoid the water, even as the sky begins to clear.
As the week progresses, the chance for showers will diminish by Tuesday morning, giving way to a much calmer pattern. This shift brings relief from the damp weather, though residents should plan for cool nighttime temperatures consistently ranging from 46 to 56 degrees.
The immediate goal for residents is to respect the water safety alerts at the lakefront today. Beyond that, the focus shifts to the seasonal cooling trend that will define the rest of the week’s outdoor activity.
Five Day Forecast
Monday: Highs 62 67, Lows 49 56, Breezy with shower risk
Tuesday: Highs 61 66, Lows 46 56, Clouds clearing
Wednesday: Highs 64 68, Lows 47 56, Turning drier
Thursday: Highs 65 70, Lows 48 56, Mostly dry
Friday: Highs 66 72, Lows 47 56, Seasonable cooling