CHICAGO — As the city heads into another summer weekend, forecasters are warning of intensifying heat across the Chicago area — with temperatures expected to climb into the upper 80s and 90s by Saturday afternoon. And while skies will remain mostly clear through most of the weekend, storm chances are rising for late Sunday, according to the First Alert Weather team.
Chief Meteorologist Albert Ramon delivered the updated forecast Friday, cautioning residents to take heat precautions as the region experiences another spike in humidity and temperature.
Hot and Humid Days Ahead
Chicagoans should prepare for highs in the 90s starting Saturday and continuing through Sunday afternoon. The heat index — which measures how hot it actually feels with humidity — could push conditions closer to 100°F in some areas, especially in urban heat pockets and less shaded neighborhoods.
“The sun will be out in full force, and we’re advising everyone to stay hydrated, limit strenuous outdoor activity, and check on vulnerable neighbors and pets,” Ramon said during the First Alert forecast.
Storm Risk Late Sunday Evening
By late Sunday, conditions may shift as unstable air masses move into the region, increasing the likelihood of thunderstorms or scattered showers after sunset. Ramon emphasized that while the risk of severe weather remains low, lightning and brief downpours are possible.
“While most of the weekend will be dry, we’re watching a weak front that may trigger isolated storms in the late evening hours on Sunday,” Ramon added.
Weekend Forecast Highlights
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Friday Night: Mild, clear skies. Lows in the mid-60s.
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Saturday: Mostly sunny and hot. Highs near 90°F.
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Sunday: Hot and humid, with increasing clouds by evening. Storms possible late. Highs in the low 90s.
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Sunday Night: Scattered showers and isolated storms. Low around 70°F.
Cooling Centers and Safety Tips
The City of Chicago has activated its network of cooling centers across the city, especially in senior centers, public libraries, and park district buildings. Residents can call 311 to find the nearest cooling location or visit chicago.gov/coolingcenters.
Heat Safety Tips:
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Drink plenty of water throughout the day
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Avoid alcohol and caffeine when outdoors
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Wear light, breathable clothing
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Never leave children or pets unattended in vehicles
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Take breaks in the shade or indoors with AC
Storm Preparation Guidance
If storms do form Sunday evening, residents should:
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Bring in or secure outdoor furniture
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Charge mobile devices in case of outages
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Monitor alerts via NOAA Weather Radio or mobile apps
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Avoid flooded roadways and seek shelter during lightning
Stay updated on the latest Chicago weather alerts, weekend safety tips, and city cooling center maps at ChicagoSuburbanFamily.com. Your go-to source for timely updates impacting your neighborhood.
