Coverage dated October 20, 2026

Chicago weather: Areas of dense fog will be possible overnight

Headline from Fox32 Chicago

It was another stunning day with highs in the upper 60s to low 70s under sunny skies. Tonight will once again bring the chance for fog, some of which may be dense in the early morning hours of Wednesday.

Fox32 Chicago's own description from its feed. We collect headlines and these descriptions, not full articles; read the original reporting below.

Reports & sources

4 articles, oldest first.

  1. NBC Chicago

    Dense fog advisory issued for parts of Chicago area with with near-zero visibility on roads (opens NBC Chicago)

    Published

    NBC Chicago's feed description

    Parts of the Chicago area are under a dense fog advisory Tuesday morning, with visibility close to zero leading to dangerous driving conditions for the morning commute. The advisory, issued for Central Cook, Lake, DuPage and McHenry Counties in Illinois, and Kenosha County in Wisconsin, remains in e…

  2. FOX 6 Milwaukee

    Milwaukee Weather: Dense AM fog, dry week (opens FOX 6 Milwaukee)

    Published

    FOX 6 Milwaukee's feed description

    Forecast from FOX6 Chief Meteorologist Rob Haswell DENSE FOG ADVISORY IN EFFECT We may have to navigate some thick fog for the Tuesday morning commute, especially across eastern Wisconsin, with visibility potentially remaining poor until late morning.

  3. Fox32 Chicago

    Chicago weather: Dense fog early, then unseasonably warm temps today (opens Fox32 Chicago)

    Published

    Fox32 Chicago's feed description

    Dry and warm to unseasonably-warm conditions persist through the weekend. The only bumps in the road will be some early-morning fog and a minor lake breeze each day. A Dense Fog Advisory has been issued for northern Cook and Lake counties until 9 a.m.

  4. Fox32 Chicago

    Chicago weather: Areas of dense fog will be possible overnight (opens Fox32 Chicago)

    Published

    Fox32 Chicago's feed description

    It was another stunning day with highs in the upper 60s to low 70s under sunny skies. Tonight will once again bring the chance for fog, some of which may be dense in the early morning hours of Wednesday.