The first snow of 2022 followed record high temps. (Patty Wetli / WTTW News)

A winter weather advisory went into effect Tuesday morning for much of the Chicago region, a far cry from last week's balmy 70-degree temperatures.

(Linus Schutz / Pixabay)

The forecast calls for highs in the mid-70s on Thursday, which could approach the date's record high of 75 degrees set in 2020.

(Jorge Fernandez / Unsplash)

A strong system is moving into the area late Friday, bringing with it waves of showers on Saturday morning and wind gusts that could top 50 miles per hour, according to the National Weather Service.

(Darius Cotoi / Unsplash)

It wasn't exactly a winter wonderland, but the first snowflakes of the season were recorded Monday morning at O'Hare, according to the National Weather Service.

An uprooted tree, toppled by strong winds from the outer bands of Hurricane Ian, rests in a parking lot of a shopping center, Wednesday, Sept. 28, 2022, in Cooper City, Fla. (AP Photo / Wilfredo Lee)

About 2.5 million people were ordered to evacuate southwest Florida before the storm hit the coast with maximum sustained winds of 150 mph. It was heading inland, where it was expected to weaken, at about 9 mph, but residents in central Florida could still experience hurricane-force winds.

Waves kick up under a dark sky along the shore of Batabano, Cuba, Monday, Sept. 26, 2022. (AP Photo / Ramon Espinosa)

Ian was forecast to hit the western tip of Cuba as a major hurricane and then become an even stronger Category 4 with top winds of 140 mph over warm Gulf of Mexico waters before striking Florida. As of Monday, Tampa and St. Petersburg appeared to be among the most likely targets for their first direct hit by a major hurricane since 1921.

Steven Bertke and his dog Roscoe are taken to dry land by St. Louis firefighters who used a boat to rescue people from their flooded homes on Hermitage Avenue in St. Louis on Tuesday, July 26, 2022. (David Carson / St. Louis Post-Dispatch via AP)

Damage across the St. Louis region was widespread after a massive downpour dropped more than 11 inches of rain in parts of St. Charles County and up to 10 inches elsewhere in the St. Louis metropolitan area.

(Patty Wetli / WTTW News)

The recent heat wave, coupled with lower than normal precipitation, has produced conditions ripe for what’s known as a “flash drought” in the Chicago area.

Children play in the Crown Fountain on Michigan Avenue, Tuesday afternoon, June 14, 2022, in Chicago. (Ashlee Rezin / Chicago Sun-Times via AP)
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The National Weather Service maintained an excessive heat warning through Wednesday evening for most of Illinois, Indiana and Ohio, which have been dealing with the sticky humidity and soaring temperatures since Tuesday. 

(Paul Zoetemeijer / Unsplash)

A supercell system walloped much of northeast Illinois and northwest Indiana on Monday night.

(Gerd Altmann / Pixabay)
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Chicago isn’t likely to break the 35-year-old record high of 99 degrees set for June 14 back in 1987, even though the heat index is expected to top 105 degrees. Which begs the question: What is the heat index?

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Mild temperatures will give way to blistering heat this week, with the National Weather Service warning of temperatures in the mid-90s and peak heat indices of 110 degrees on Tuesday and Wednesday.

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The combination of high temperatures and humidity sent heat indices soaring above 100 degrees Wednesday. Thursday will see more of the same.

Chuoy the buoy, reporting for data-monitoring duty in Lake Michigan off the Chicago shoreline. (Illinois-Indiana Sea Grant)

Anchored a mile off Navy Pier, Chuoy the Buoy fills a Chicago-sized gap in shoreline monitoring. Swimmers, boaters, anglers, researchers and meteorologists alike will benefit from data collected close to the city’s lakefront.   

(Nikolas Noonan / Unsplash)

April was the rollercoaster ride, weather-wise, Chicagoans have come to expect from spring's most capricious month.

An Amazon distribution center is heavily damaged after a strong thunderstorm moved through the area, Dec. 10, 2021, in Edwardsville, Ill. (AP Photo / Jeff Roberson, File)

The Occupational Safety and Health Administration on Tuesday sent a “Hazard Alert Letter” to the Seattle-based e-commerce giant on Tuesday following the agency’s investigation into the deadly collapse of a company warehouse in Edwardsville, Illinois in December. Six people died and another was critically injured in the tornado strike.