Chicago Cools as Cold Air Ends Warm Spell
Colder air moves into the Chicago area after weeks of unseasonable warmth, with showers expected Thursday and sunshine forecast Saturday.
Updated on Nov. 4, 2026 in Current Conditions
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Colder air moved into the Chicago area after weeks of unseasonably warm weather. Highs near 65 degrees Wednesday give way to temperatures in the 50s Thursday as a couple of showers push through.
Why it matters
The shift marks a sharp return toward seasonal norms after an extended stretch of mild conditions. Residents should expect breezy, cooler weather through the end of the week.
Forecasters expect highs around 65 degrees Wednesday, dropping into the 50s by Thursday and the mid-40s by 7:20 p.m. Bears kickoff at Soldier Field. Rainfall totals for Thursday's showers and lake-effect amounts in northwest Indiana were not provided.
The details
A blocking pattern slowed the storm system's progress, bringing occasional drizzle and light showers through the day. Cooler air is moving in as the Chicago area enters the drier center of the system, with Saturday expected to bring sunshine and Sunday no longer expected to bring rain.
Timeline
Tuesday evening: Thunder rumbled to the south and west as storm activity moved closer to Chicago.
Wednesday: Highs around 65 degrees before cooler air arrives.
Thursday: Temperatures fall into the 50s and a couple of showers push through.
Friday: Lake-effect rain is possible in northwest Indiana.
Saturday: Sunshine is forecast.
Seasonal Patterns
The cooldown reverses weeks of unseasonable warmth in the Chicago area, bringing temperatures back toward seasonal averages. The shift follows the pattern of late-autumn transitions in which a slow-moving storm system gives way to colder air arriving from Lake Michigan.
Dress in layers for the cooler Thursday and Friday, and plan for showers Thursday and possible lake-effect rain for travel in northwest Indiana. Bears fans heading to Soldier Field at 7:20 p.m. Sunday should prepare for temperatures in the mid-40s.
The takeaway
Check the forecast before heading out Thursday and Friday, since showers and cooler temperatures can change plans quickly after a stretch of mild weather. Packing a warm layer will make the transition easier.
Further reading
Track the latest changes in the Current Conditions section for Chicago.
Source note: This article includes information reported by NBC Chicago.
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