Transportation officials were still advising against travel in southern Minnesota on Tuesday because of snowy, icy conditions.
Snow was beginning to taper off in the Twin Cities, but up to 2 more inches of snow was expected in south-central Minnesota.
"Conditions have improved somewhat," said Rebecca Arndt, a spokeswoman for MnDOT in Mankato. "We are advising no unnecessary travel for the morning and hoping and anticipating that conditions will improve by this afternoon."
Visibility wasn't a problem for plows Tuesday morning, but many roads in southern Minnesota were still 100 percent compacted with ice and snow.
In the Twin Cities, it was another slow trip to work commuters, some of whom had to dodge vehicles that had crashed or spun off the road.
The Minnesota Department of Transportation listed roads in southern and southwestern Minnesota "hazardous," including Interstate 90 in southwestern Minnesota.
In western and southeastern Minnesota, MnDOT reported difficult driving conditions due to snowcovered roads.
More than two dozen southern Minnesota counties were under a winter storm warning. Forecasters expect the snow to taper off in the Twin Cities by noon Tuesday, after leaving some areas with up to 9 inches.
Western, southwestern and south-central Minnesota were expected to get the most snow with up to 11 inches in the forecast.
Some school districts canceled classes, including Madelia, Mankato, Austin, Brown Valley and Minnewaska. Many other districts delayed the start of school.
(The Associated Press contributed to this report.)