DAVENPORT, Iowa – A thick blanket of fog clings to the Mississippi River this morning, turning headlights into soft halos and leaving tree branches glittering with frost. The calm air and near-freezing temperatures have built a layer of freezing fog across much of the Quad Cities region — Iowa and Illinois alike — reducing visibility to near zero in some rural stretches.
The National Weather Service in the Quad Cities has issued a Dense Fog Advisory until 8 a.m. for both states, warning that visibility under a quarter-mile may create hazardous travel conditions along I-80, I-74, and U.S. 61. Freezing fog could coat bridges and overpasses with a thin glaze of ice, particularly in low-lying and river valley areas. Drivers are urged to slow down, use headlights, and leave extra following distance through early morning.
By late morning, sunlight will begin breaking through the haze, leading to a pleasant rebound into the lower 50s by afternoon. Winds remain calm through Sunday, then strengthen slightly out of the southwest Monday, bringing highs near 60°F and continued sunshine into Tuesday.
This early-November pattern fits with what NOAA calls a weak La Niña setup — one that favors large day-to-day temperature swings across the Midwest. The mild start to the week won’t last forever; forecasters are watching a potential shift toward cooler, wetter conditions by the middle of the month.
For now, residents on both sides of the Mississippi can expect classic fall contrast — frosted mornings giving way to crisp blue skies and a brief stretch of calm before late-autumn changes return.
Five-Day Forecast for the Quad Cities (IA–IL):
Sun: 53/39 – Dense freezing fog early; sunny afternoon.
Mon: 61/39 – Sunny; southwest wind increasing.
Tue: 66/46 – Mostly sunny; mild, calm evening.
Wed: 64/37 – Clear; cooler and dry.
Thu: 63/47 – Partly cloudy; light breeze, late-week showers possible.
