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Late-Summer Warmth Holds in Chicago Before a Late-Week Cooldown

Forecasters expect a brief early-week warm stretch followed by a late-week cooldown with increasing shower chances.

Overview

  • Monday brings mostly sunny skies with highs near 90 degrees well inland and around 80 along the lakefront.
  • Tuesday and Wednesday trend mostly sunny with seasonable upper 70s to lower 80s.
  • Thursday features increasing clouds with a late-day shower chance, and Friday turns cooler in the mid-70s with rain at times.
  • Weekend rain delivered locally beneficial totals, including about 1.33 inches in Highland Park, while the USDA Drought Monitor still shows broader drought downstate.
  • Lake Michigan water remains relatively warm after an August peak near 77 degrees, raising the potential for fall lake-effect showers.