The Cold Weather Advisory is in effect until midnight on Wednesday, according to the National Weather Service.

The advisory is in effect for most counties 3 a.m. Sunday until noon Tuesday. It begins for several others, including Milwaukee, at 6 p.m. Sunday.

Light snow is looking more likely for Wednesday. Most of the snow is expected after the morning commute, but there may be a few slick spots early.

Temperatures could be as low as -10 in Milwaukee on Tuesday. Where in the world is colder than the Cream City today?

As wind chills hit dangerous levels, the decision to close schools becomes critical. Kevin Wagner, a lead meteorologist with the National Weather Service, explains how those decisions are made.

Several schools and organizations have already announced closures for Tuesday. You can view a complete list compiled by our

Wisconsin continues to see freezing temperatures this week. Here's how NWS meteorologists calculate wind chill.

On Monday at 2:34 p.m. the National Weather Service issued an extreme cold warning valid for Tuesday between 3 a.m. and noon. The warning is for Milwaukee, Racine and Kenosha

The extreme cold warning includes the counties of Dane, Sauk, Iowa, Jefferson, Lafayette, Green and Rock for midnight through 9 a.m. Tuesday.

On Tuesday at 3:05 a.m. the National Weather Service issued an updated extreme cold warning in effect until noon. The warning is for the Madison Area as well as Marquette,

On Monday at 9:27 p.m. the National Weather Service issued an updated extreme cold warning valid for Tuesday between 3 a.m. and noon. The warning is for Milwaukee, Racine and