ENVIRONMENT

Chicago swelters; heat indices top one hundred today

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Chicago recorded highs near 95 to 96 degrees on Tuesday, as meteorologists warned heat index values between 98 and 105 degrees and noted lower temperatures along the immediate lakefront. The Chicago Office of Emergency Management and Communications urged residents to prepare for extreme heat and to check on vulnerable people. City officials issued Air Quality Alerts through Tuesday night, announced cooling centers and reminded residents to call 311 for wellness checks. On Wednesday forecasts called for continued mid-90s heat with possible readings near 97 and heat indices above 100; forecasts also warned of potential wildfire smoke from southern Canada later in the week.

Prepared by Olivia Bennett and reviewed by editorial team.

Timeline of Events

Aug 27, 2024: Chicago last recorded a high of 96°F prior to this event.
Early July 2026: Elevated dew points were present leading up to July 4, increasing humidity.
Tuesday (current week): Observations and forecasts show highs around 95–96°F with heat indices near 98–103°F.
Wednesday (following day): Forecasts predict continued mid-90s heat, possible peak near 97°F and heat indices over 100°F.
Thursday (later this week): Forecasts project potential wildfire smoke intrusion from southern Canada that could reduce air quality.

Why This Matters to You

Extreme heat can be dangerous, especially for the elderly and those with health issues. It's not just discomfort - it's a health risk. The poor air quality from potential wildfire smoke can also affect your lungs. Keep an eye on vulnerable neighbors and family.

The Bottom Line

Stay safe in this heat. Hydrate, stay indoors if possible, and use cooling centers if needed. Watch for updates on air quality, especially if you have respiratory issues. Worth forwarding if you know someone in Chicago who could use this info.