Chicago is kicking off Monday with warm, unsettled conditions — a high near 80°F, a 70% chance of showers and thunderstorms, and south-southwest winds gusting to 30 mph. Whether you’re heading to the Loop, Lincoln Park, or Wrigley Field, keep rain gear close and stay flexible today.
Today’s Setup
The National Weather Service in Romeoville is tracking the remnants of an overnight storm system that crossed the Mississippi River into the region early this morning. Though the line has been weakening, afternoon heating is expected to spark renewed thunderstorm development — particularly across the south and southeast portions of the metro. Gusty outflow winds of 30 to 40 mph and small hail are possible with the stronger cells.
Storm Timing and Best Windows Outside
The most active stretch runs from about 11 AM to 1 PM CT, when the NWS considers storms “likely.” If you need to be outdoors — a lakefront run, a lunch break in Millennium Park, or errands in Wicker Park — aim for before 8 AM CT or push plans to mid-to-late afternoon. Even then, a 70% precipitation chance means staying dry is not guaranteed. Tuck a compact travel umbrella into your bag, and a packable rain jacket is smart insurance if you’re commuting or spending any time on foot.
Cubs at Wrigley: Expect Possible Delays
The Chicago Cubs host the Milwaukee Brewers at Wrigley Field today (May 18) — the first of a three-game series running through Wednesday. All three games carry real storm risk, especially today. Come prepared with layers and waterproofs. Rep the home team with a Chicago Cubs jersey or Chicago Cubs fitted cap, and if you still need seats, you can Find tickets on StubHub for any game in the series.
Rain and Wind Risk
No SPC Convective Outlook covers the Chicago area today — the higher severe weather risk sits farther west across Missouri. That said, the National Weather Service notes small hail and strong outflow gusts remain possible locally. SSW winds of 15 to 20 mph persist all day, making the muggy 80°F air feel gusty. If you hear thunder, move indoors immediately and wait at least 30 minutes after the last rumble.
Rainy Day Comfort Food
A stormy Monday is built for slow-cooker cooking. Load up a programmable slow cooker with chili or beef stew in the morning and let it run while you wait out the weather — dinner practically makes itself. Prefer something stovetop? An enameled cast iron Dutch oven is perfect for a big pot of soup simmering all afternoon. Need ingredients? You can order groceries on Amazon and have everything delivered straight to your door.
Next Few Days
Tuesday (May 19) looks nearly identical to today — high near 80°F, 60% storm chance, with winds gusting to 35 mph out of the WSW. Then a significant cooldown arrives Tuesday night, with lows dropping to around 51°F — a dramatic shift. Mid-week brings drier, cooler conditions, which is good news for outdoor chores. By the weekend, milder temperatures return, though shower and storm chances linger intermittently — something to watch closely if you’re planning on the Sueños Festival at Grant Park on May 24.
For the full Chicago weather forecast and hourly timing, check back as conditions evolve.
