Champaign, IL Weather: Rain and Fog Early, Cold Snap Midweek, Possible Snow by Weekend

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Snow possible
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Champaign, IL – A thick blanket of fog hangs low across cornfields and interstates this morning, muffling headlights and slowing commutes across central Illinois. Drivers are urged to use caution, as a Dense Fog Advisory remains in effect until midmorning, with visibility dropping below a quarter mile in spots from Champaign to Bloomington.

Once the fog lifts, a stretch of unsettled weather begins. The National Weather Service in Lincoln, Illinois, reports a round of steady rain expected later today through Tuesday, followed by a sharp wind shift midweek. By Wednesday, gusts may reach 35 to 40 mph, signaling the arrival of colder, drier air just before Thanksgiving.

Thanksgiving Day itself looks crisp and bright, with highs near 36°F and sunshine dominating much of the region — ideal for travel or early-morning parades, though the breeze will make it feel colder.

Looking ahead, early model trends hint at a possible “Winter Tease” by Saturday, with a 30–40% chance of light snow or a rain/snow mix across central Illinois. While accumulation appears minimal, it’s a reminder that winter is near — and that post-holiday travel could get tricky if temperatures dip near freezing.

5-Day Outlook:

  • Tuesday: Rain likely, high 57°F.
  • Wednesday: Breezy, 41°F.
  • Thanksgiving Day: Sunny, 36°F.
  • Friday: Mostly cloudy, 37°F.
  • Saturday: Chance of light snow, 36°F.