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Chicago Under Air Quality Alert as Heat and Showers Threaten

Smoke from Canadian wildfires will hold air quality at unhealthy levels until a late Tuesday arrival of a low-pressure system.

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Overview

  • An Air Quality Alert is in effect for 13 Chicagoland counties through midnight Tuesday due to lingering wildfire smoke.
  • Chicagoland’s air is forecast to be unhealthy for sensitive groups until late Tuesday when a low-pressure system is expected to improve conditions.
  • Tuesday and Wednesday will see highs near 90°F with isolated evening showers possible.
  • Slow-moving storms on Wednesday and Thursday may trigger localized flash flooding and stir choppy conditions on Lake Michigan.
  • Highs will dip into the low 80s on Thursday and Friday under mostly cloudy skies before scattered showers return Saturday with temperatures near seasonal averages.