Denver, CO – The calm, sunny start to the week won’t last long. By Tuesday evening, clouds build quickly over the Front Range, and the first significant December snow event of the season begins to take shape. The National Weather Service in Boulder warns that snow will increase late Tuesday night, especially along the I-70 corridor and Palmer Divide, making for hazardous travel into early Wednesday.
Models show most Front Range locations, including Denver and Boulder, seeing 1 to 3 inches of snow, while higher foothill and mountain zones could pick up 3 to 6 inches. Snow will likely start after sunset Tuesday, then taper by midday Wednesday. Expect slick roads, reduced visibility, and icy bridges—particularly on morning commutes and high-elevation routes.
Temperatures will plummet behind the front, dropping into the low teens by Wednesday morning and single digits in the mountain valleys. Winds may gust up to 15 mph, adding a bitter wind chill that will make it feel near zero across parts of the metro area.
The rest of the week trends drier but cold, with Thursday’s high near 39°F before a slow warming trend toward mid-40s by Friday and Saturday. Still, refreezing moisture could lead to patchy black ice early each morning through the weekend.
Drivers are urged to prepare vehicles now—check tires, wipers, and antifreeze—and allow extra time for midweek travel.
