Today’s forecast calls for cloudy skies with a high of 50 and an overnight low of 9, with a 40% chance of snow after 4 p.m. New snow accumulation of less than an inch is possible during the day. Between 4 and 8 inches of new snow accumulation is possible overnight. Snow may be heavy at times.

Boulder should see highs in the 30s today with cloudy skies, according to the National Weather Service. Today’s forecast calls for cloudy skies with a high of 39 and an overnight low of 19. Wednesday’s forecast calls for sunny skies with a high of 46 and an overnight low of 27.

High winds are typically associated with winter storms, hurricanes or severe thunderstorms. But on the morning of Jan. 17, 1982, 43 years ago, a fierce windstorm hammered the Front Range of Colorado with gusts you might associate with a mountain top or within the eyewall of a hurricane.

Here is what is and isn't a polar vortex when Colorado receives cold like what is forecast for the holiday weekend.

The City of Boulder, along with Boulder County and the Boulder Office of Disaster Management, will open a temporary 24-hour Extreme Weather Shelter on Saturday.

The I-25 corridor can expect mild temperatures Thursday. But by Friday afternoon, the cold front will roll in, delivering snow and subzero temperatures.

An arctic blast is pushing cold air into many parts of the U.S. this week, and Colorado is expected to feel the brunt of the effects from Friday evening until Monday. Wind chill temperatures are expected to dip below zero degrees Fahrenheit in the greater Denver and Boulder regions on Sunday and Monday according to the National Weather Service (NWS).

Boulder opens a temporary Extreme Weather Shelter to protect its unhoused residents from subzero temperatures.

The following Colorado snow totals have been reported by the National Weather Service for Jan. 7, 2025 as of 6 a.m. Tuesday: Denver Intl Airpo, CO — 1.5 inches at 5 a.m. Greeley, CO — 0.4 inch at 12 a.m. Leadville, CO — 1 inch at 12:43 a.m.

Tuesday night temperatures plummeted into the single digits and below following a snowstorm that blanketed much of the state, leading to dangerously cold temperatures ahead of the next round of snow.