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Weather Chicago, IL

Chicago Weather Tuesday: Sunny and 88°F With Heat Index Near 100

Best Window Tuesday: 88°F, Sunny
Rain Risk Low
What To Wear / Bring Sun protection, water, and breathable layers
Useful Links Local forecast, radar, and relevant planning links
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7-Day Forecast

Tue 88°Sunny
Wed 90°Mostly Sunny
Thu 87°Mostly Sunny...
Fri 84°Mostly Sunny...
Sat 89°Chance Showe...
Sun 82°Slight Chanc...
Mon 82°Slight Chanc...

Chicago is off to a hot, sunny start to the week, with a high near 88°F today, Tuesday, July 14, and the National Weather Service in Chicago/Romeoville says heat index values could climb close to 100 degrees by afternoon. If you’re mowing the lawn in Portage Park, walking the Lakefront Trail, or hitting the links, plan around the midday peak.

Today’s Setup

Skies are sunny with a light northeast wind around 5 mph and gusts to 10 mph, a classic dry summer setup as a mid-level ridge builds over the region. Forecasters note dewpoints running in the low 70s away from the urban core, but the deeply-mixed corridor around Midway and O’Hare could still see upper-90s air temperatures. No rain is in the forecast — 0% chance of precipitation through tonight, when lows settle near 77°F under mostly clear skies.

Best Window To Be Outside

Golfers and gardeners should aim for before 11 AM CT or after 6 PM CT, when the sun angle drops and the heat index eases. It’s genuinely great golf weather early in the day, before the afternoon heat builds. If you’re watering, running a soaker hose for garden overnight beats hand-watering in the midday sun.

Heat Risk

There’s no active Storm Prediction Center outlook for the Chicago area today, and the Weather Prediction Center’s excessive rainfall concern is focused entirely on south-central Texas, not Illinois. The main hazard here is the heat itself — peak heat index values near 100°F are possible this afternoon, with a chance of isolated readings even higher given a slight uptick in low-level moisture, per the NWS discussion.

What To Wear Or Bring

Light, breathable layers are the move — no show socks bamboo pair well with sneakers if you’re walking Navy Pier or the 606 Trail. Bring water, sunscreen, and a hat for any extended time outside. Cooling off at the lake or a pool? The 2-Person Intex Floating Lounge with Cooler is a smart, affordable way to beat the heat on the water.

Big Events This Week

It’s a packed stretch around town. Noah Kahan plays Wrigley Field tonight, July 14, under clear skies and a comfortable 88°F high — great concert weather. Meghan Trainor brings her Get In Girl Tour to United Center on Wednesday, July 15; check out our Meghan Trainor tour coverage and grab a Meghan Trainor t-shirt or Meghan Trainor hoodie before heading downtown. RUSH follows at United Center Thursday, July 16 — see our RUSH tour details and pick up a RUSH t-shirt. And Chicago Fire FC hosts Vancouver Whitecaps at Soldier Field on Friday, July 17, with the hot, dry pattern expected to hold — solid tailgating conditions. Get tickets on SeatGeek or find tickets on StubHub, and gear up with a Chicago Fire FC scarf or Chicago Fire FC jersey.

Tonight’s Dinner

With clear skies and light wind, it’s perfect grilling weather — burgers, steaks, or grilled chicken with corn on the cob all work tonight. An instant-read meat thermometer takes the guesswork out of doneness, and a grill brush and scraper set keeps the grates ready to go. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door.

Next Few Days

Wednesday brings more of the same: mostly sunny, a high near 90°F, and heat index values up to 98°F, per the NWS. The ridge responsible for this stretch is expected to hold strong, so keep the sunscreen and hydration habits going into the back half of the week. For more outdoor gear ideas as the heat continues, browse outdoor gear deals.

Upcoming Home Games

Plan around the forecast — grab tickets, gear up, and see kickoff conditions.

Chicago Fire FC vs Vancouver Whitecaps
Fri, Jul 17 · Soldier Field

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