Chicago woke up to mostly clear skies, a cool north breeze and temperatures parked in the mid 60s this morning, with afternoon highs only expected to top out near 71°F. A steady north wind around 10 to 15 mph will leave the lakefront feeling a few degrees cooler than spots farther inland. The catch: while the air feels great, Lake Michigan is stirred up, with large waves and strong currents turning a casual swim into a serious hazard. Officials are urging everyone to stay out of the water and off piers and breakwalls.
Lakefront Hazards
The National Weather Service has a Beach Hazards Statement in effect for southern Lake Michigan beaches, and Small Craft Advisories are flying for the nearshore waters. According to NWS Chicago, dangerous currents and high wave action are expected through Wednesday evening, with Small Craft Advisories in effect until 10 p.m. tonight for Illinois nearshore waters and until 4 a.m. Thursday for Indiana nearshore waters. Boaters should expect choppy conditions and think hard about postponing trips until the lake settles down.
Beaches, Lifeguards And Closures
The Chicago Park District is reminding beachgoers that swimming is allowed only when lifeguards are on duty, and that posted flags are not suggestions. Lifeguards can raise warnings or close swim areas altogether if the lake gets rougher. For more local guidance and prior coverage of lifeguard advisories, see how wind and waves put the lakefront on notice. If you are heading to a specific beach, check the flags before you even think about getting in and keep children well away from the surf.
Cool Break Today, Heat Returns Early Next Week
Today and Thursday stay on the pleasantly mild side, with highs in the low 70s and overnight lows around 60°F. After that, the pattern flips quickly. A warmup late this weekend is expected to send highs into the upper 80s by Sunday and early next week, with humidity climbing along for the ride. Forecasters also see an increasing chance of showers and thunderstorms Sunday into Monday, and note that some storms could be on the stronger side. The timing and trend are discussed in the forecast discussion and outlook, so keep an eye on updates from NWS Chicago.
What To Do
For now, stay out of the surf and off piers and breakwalls until officials lift the advisory, and delay recreational boating while the Small Craft Advisories remain in place. Parents should keep kids at a safe distance from the shoreline, and anyone who does plan to swim should only enter the water where lifeguards are on duty. Before you head out, check local beach postings or the Chicago Park District beach status dashboard and follow lifeguard instructions on site.
