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Chicago to Heat Up Near 90°F Before Showers and Midweek Cooldown

Hazy skies from Canadian wildfire smoke underscore the region’s moderate drought ahead of a Tuesday night marginal severe-storm risk.

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Chicago skyline of skyscrapers and Ferris Wheel with sun shining in the background and white fleece flowering plants in the foreground, seen from the Navy Pier in Chicago, Illinois, USA.
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Overview

  • Temperatures will climb into the upper 80s Monday with highs potentially reaching near 90°F on Tuesday under dry southwest winds.
  • The Storm Prediction Center has placed northeast Illinois in a Marginal Risk for severe storms Tuesday night, with far northwestern DeKalb County in a Slight Risk area.
  • Showers and a few thunderstorms are likely Tuesday evening into Wednesday before highs tumble into the 60s under cooler air.
  • May precipitation fell well below normal, leaving much of the Chicago metro in moderate drought with 2–4-inch rainfall deficits.
  • Canadian wildfire smoke drifting in from the north will haze skies without expected significant impacts to air quality.