Chicago Labor Day weekend forecast: ‘Unseasonably hot and sunny’ — but not so sticky

National Weather Service predicts “much more modest humidity than a week ago,” when a heat wave broke temperature records before a cooldown this week.

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Los residentes se sientan bajo la sombra en la playa 31st Street Beach mientras estaba vigente una advertencia de calor excesivo el miércoles, 23 de agosto de 2023.

Beachgoers sat in the shade at 31st Street Beach while an excessive heat warning for northern Illinois was in effect on Aug. 23. | Pat Nabong/Sun-Times

Pat Nabong/Sun-Times

Summer isn’t quite over yet.

Despite hints of fall weather the last few nights, another warm front is expected to roll across Chicago just in time for Labor Day weekend — the unofficial marking of summer’s end.

It comes on the heels of a blistering heat wave last week, which broke temperature records and brought Chicago its first 100-degree day in over 10 years.

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Friday’s temperature should reach the mid-80s, and it’s anticipated to climb Saturday to 90 degrees, then even higher Sunday and Monday to the mid-90s.

Though the kick of warm air is considered “unseasonably hot and sunny,” the National Weather Service said it should bring “much more modest humidity than a week ago.”

“The less humid air mass should make for more comfortable conditions in the evening through early morning over the holiday weekend,” the weather service said.

The weekend, including Monday, is also expected to bring a breeze.

Night temperatures could dip as low as 55 degrees Friday and stay around the mid-60s the rest of the weekend.

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Another wave of warm air is expected to cover Chicago over the Labor Day Weekend, but weather forecasters say it will bring less humidity, making for “more comfortable conditions” than when a heat wave hit the area a week ago.

National Weather Service

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