Chicago woke up Tuesday to a blanket of mostly cloudy skies and a mild 63°F at Midway, with a south-southeast breeze quietly sneaking warmer air inland. By this afternoon, inland neighborhoods are expected to climb to around 78°F, while spots hugging Lake Michigan stay several degrees cooler well into the late day.
Skies should run partly sunny through the day, with highs near 78°F away from the lake and readings easing back into the mid 70s by late afternoon. Tonight turns mostly cloudy with a low near 61°F. Winds remain light from the south-southeast at about 5 to 10 mph, and a late-afternoon lake breeze is likely to shove cooler air inland right along the shoreline. For the full forecast and technical breakdown, see the NWS.
Afternoon Lake Breeze
That onshore push will chop shoreline highs back into the 60s and lower 70s, even as inland neighborhoods top out in the upper 70s. If you are headed for a lakefront run or staking out beach space, plan on a noticeable chill compared with spots just a few miles inland and bring an extra layer for the cooler waterfront air.
Midweek Shift And Gusty Night
A backdoor cold front is set to slide in late Wednesday into the evening, flipping winds to the north and knocking Thursday’s temperatures down into the mid 60s. It will turn breezy Wednesday night into Thursday, with north winds of 10 to 15 mph and gusts around 20 to 25 mph in some locations. There is only a low chance of an isolated shower across far northern or northwest Illinois, and most of the Chicago area should stay dry. Timing and wind details are outlined in the latest NWS discussion.
Plan For Outdoor Activities
Overall, the week looks friendly for outdoor plans: warm, dry afternoons inland, with cooler and breezier conditions that could complicate waterfront time along the lake. No watches or warnings are in effect right now. For how this pattern plays into the holiday, see our Memorial Day forecast from Monday Memorial Day forecast.
