Iowa–Illinois Winter Weather: Travel Risks Rise This Week Along I-80 Corridor

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Davenport, Iowa – A cold gray ceiling presses low over the Quad Cities this Saturday morning, tinting the Mississippi River in muted silver as Thanksgiving travel ramps up across eastern Iowa and western Illinois. Damp roads reflect that dim light, and a steady east breeze adds a brisk edge for shoppers heading toward I-80 or local crossings into Rock Island. Drivers should ease into the day, watch merging traffic near the bridges, and allow added minutes for early errands.

According to the National Weather Service Quad Cities office, cloud cover holds firm today with highs near the mid-40s. That steadiness makes the air feel cooler than it reads and keeps pavement from warming much. According to Iowa DOT and Illinois DOT updates, traffic volumes increase through the afternoon as holiday plans begin. Residents should secure loose decorations, check tire pressure, and prepare for changing skies later in the week.

Partly sunny weather returns Thursday, lifting spirits before models hint at a light rain chance late Thursday night into Friday. That system stays weak, but drizzle may build around daybreak Friday and affect heavier travel across the Quad Cities metro. To be fair, temperatures remain too mild for ice, yet any persistent moisture can slow traffic on I-74 and I-80. Early-season patterns occasionally flip, and forecasters watch subtle shifts that could tug cooler air south next week, offering a small “Winter Tease” north of Highway 30.

The weekend turns brighter with highs pushing near 58 Sunday, ideal for yard cleanup or early holiday decorating while temperatures stay comfortable. After all, November often hides quick changes, and travelers should stay alert to updated guidance ahead of Thanksgiving.


Five-Day Forecast for Davenport, IA:
Sat: 46/41 – Cloudy; cool east wind.
Sun: 58/40 – Sunny; mild and pleasant.
Mon: 57/37 – Mostly sunny; calm.
Tue: 52/34 – Mostly sunny; cooler breeze.
Wed: 52/33 – Partly cloudy; stable conditions.