Frigid weather and icy roads will combine to make this morning's commute an exercise in patience.

"Rush hour is always difficult after it has been freezing all night," said Ann Williams, spokeswoman for Denver Public Works.

"It will be sloppy," she said. "Folks will need to allow plenty of time, so they're not rushing, and pay attention on the streets for slick spots."

This morning's commute also will be complicated by fog in some areas, but it will burn off during the day, bringing sunny skies and highs in the lower 40s.

The Denver area will start warming slightly this weekend, with highs between 45 and 53 degrees and lows around 30. Sunday will be even warmer - highs in the lower to mid-50s and lows around 30.

Another chance of snow comes on Monday, however, with highs in the upper 30s and lows around 18 degrees.

At this time, it is difficult to predict how much snow the next storm will bring.

"It will be quick," said Kyle Fredin, of the National Weather Service.

Thursday's storm brought 4 to 7 inches of snow to the metro area, with the higher accumulations in the foothills and in the southern and southeastern suburbs.

Denver's fleet of plows has been working since the snow started early Thursday.

"We're fully deployed," said Williams, adding that 62 to 68 plows are out on the streets at any given time. "We're prepared and we're staying with it."

Ice Slicer and liquid magnesium chloride was used on bridges and overpasses, which ice up.

"We saw this one coming and we've been on it since the beginning," Williams said.

Driving on Interstate 25 in Adams and Weld counties was hazardous Thursday morning. A number of crashes occurred there.

"That was the busiest spot for us," said Trooper Ryan Sullivan, spokesman for Colorado State Patrol. "I know they were staying busy."

No serious injuries or fatalities were reported from those accidents, however, he said.

The evening commute went relatively smoothly. "That is a good sign," Sullivan said. "People are taking it a little bit slower to get home."

The mountains got plenty of fresh powder from the storm - a foot or more in some places - prompting ski resorts to open more terrain. It will stay cold in the mountains today, with highs in the 25-35 range and lows in the teens.