Don’t be fooled by the brief warm-up in temperature, as meteorologists predict the end of the week to be bitterly cold.

The entire week will include active weather patterns, according to Zack Taylor, meteorologist with the National Weather Service in LaCrosse, Wis.

“It’s an active week, weather wise,” he said.

The bad weather will continue tonight. While temperatures may creep into the mid 30s today and tomorrow, more rainfall could fall late tonight and freeze on roadways. The area is under a hazardous weather outlook and dense fog advisory, and more fog could move into the area Tuesday. There is a slight chance of snow Tuesday night before temperatures begin dropping dramatically. The NWS forecasts Wednesday’s overnight low at 4 below and Thursday’s high at 0. Along with blustery conditions, Thursday’s overnight windchill value could reach 30 below, Taylor added.

“I encourage people to stay tuned to the latest,” Taylor said.

The State Patrol is reporting hundreds of crashes and spinouts as a mix of freezing rain, sleet and snow make travel difficult across much of southern Minnesota.

Lt. Eric Roeske says 367 crashes were reported between noon and 8:30 p.m. Sunday, with 48 injuries, though none serious. He says another 299 vehicles went off the roads or spun out, and three semis jackknifed.

—The Associated Press contributed to this report.