After a weekend storm system leaves parts of Arizona and New Mexico, much of the Southwest is expected to experience a pleasant start to the week. No major weather systems are expected, and most areas will remain dry and mild, with Thanksgiving highs in the 70s and 80s.

CHICAGO - Chicago will be mild and mostly cloudy today. There will be fog around this morning, especially south. The chance for rain is back this afternoon. Highs will be in the low to mid 50s. Gusts today will be around 15-20 mph.

But what exactly does "wind chill" mean and why does it matter? Meteorologist Derek Witt explains in this “Weather Word of the Week.”

Eric Fisher has your latest weather forecast. Featured Russia-Ukraine Peace Plan Mamdani-Trump Meeting NFL Playoff Picture