Illinois–Iowa – Headlights fade into a gray wall this morning as dense fog settles across the Quad Cities region. Drivers creep along wet pavement with visibility dropping to a quarter mile or less, a rough start before a sharper winter pattern barrels in.
According to the National Weather Service in the Quad Cities, a Dense Fog Advisory remains in effect through late morning across northwest Illinois and eastern Iowa. Travel along I-80, I-74, and U.S. 61 may remain hazardous until fog thins from west to east. Use low beams and leave extra following distance.
Conditions improve briefly later today, but the calm does not last. Rain develops late tonight into Sunday morning. By Sunday afternoon, colder air surges in fast. Rain mixes with snow, then flips to all snow Sunday night as northwest winds strengthen.
Davenport, Rock Island, Moline, Bettendorf, and surrounding communities could see around an inch of snow, with locally higher amounts north of the Highway 20 corridor. Gusts may reach 40 to 45 mph, creating blowing snow and sudden visibility drops during peak end-of-year travel.
Plan extra time if traveling Sunday evening. Wet roads may flash freeze as temperatures tumble into the teens. Bridges, ramps, and overpasses are especially vulnerable. Wind chills plunge further overnight, dropping to near zero and even 15 below zero into Monday morning.
Monday stays bitter and windy, though skies gradually clear. Travel improves, but cold stress becomes the main concern. Bundle up and limit time outdoors. Looking ahead, New Year’s Eve Wednesday trends calmer but cold, with highs near 20, keeping winter firmly in control as 2026 approaches.
Meteorologists continue tracking lingering wind impacts into Monday. Additional advisories remain possible.
Driving through fog or snow today or Sunday? Share what conditions look like where you are.
Five-Day Weather Outlook – Quad Cities (Illinois–Iowa)
Sunday: Rain changing to snow, windy, high near 34
Sunday Night: Snow and blowing snow, low near 13
Monday: Partly sunny, very windy, high near 21
Tuesday: Mostly sunny, cold, high near 30
Wednesday (New Year’s Eve): Mostly cloudy, cold, high near 34
