Iowa wakes under a dim, gray ceiling this morning as cold air hangs low across Des Moines and frost coats parked cars and railings. Pavement looks deceptively tame, but the chill settling into the metro is a sign of the December Winter Tease building toward Saturday’s more disruptive system. Meteorologists now track a compact wave set to move in early Saturday, and travel conditions may deteriorate quickly—especially north and west of the city.

The Winter Weather Advisory begins at midnight as a band of snow pushes into central Iowa. Light flakes may start slowly, but the system strengthens by late morning, producing 2 to 4 inches across the region. Models hint at quick bursts of heavier snowfall along I-35 and I-80, where visibility may drop fast. Drivers should expect slick conditions through early afternoon as temperatures hold near freezing and light winds drift snow across exposed roads. Plan extra travel time if you’re heading to work, sporting events, or early holiday errands.

Snow tapers by evening, but colder air accelerates into the state. By Sunday, highs struggle near 10°F, and biting northwest wind gusts will likely drive wind chills toward –20°F or colder—an early-season reminder of how quickly December can turn severe. This sharp warm-to-cold transition may trigger flash-freeze slick spots, particularly on untreated roads where packed snow refreezes.

After all, this is the window when early-winter patterns lock in and commuters feel the first true sting of the season. Keep winter gear ready, monitor road updates, and stay alert for blowing snow on rural stretches.

5-DAY OUTLOOK (Des Moines, IA)

• Today: Mostly cloudy, high 27°F
• Saturday: Snow; 2–4″ possible; high 10°F
• Sunday: Sunny and very cold; high 10°F
• Monday: Mostly sunny, high 33°F
• Tuesday: Mostly cloudy, high 29°F