Storm Team 4: When will most brutally cold temps reach Milwaukee area?

Scroll through the photos for more details on Scott Steele's Storm Team 4Cast. | Video | Interactive radarMore from Storm Team 4

  • The jet stream has finally dug a deep trough into our region allowing the Arctic air to come pouring into Southeast Wisconsin. A bitter blast will be the main headline through midweek.

  • The deepest cold air will settle into the area overnight tonight. After a maximum reading today near 7 degrees, low temperatures will plummet to zero or below overnight into early tomorrow morning.

  • Growing winds out of the Northwest will also drive wind chill readings as low as 25 degrees below zero early tomorrow morning. Dry air accompanies the cold leading to plenty of sunshine to start the week.

  • The frigid air remains in tact through midweek with some moderation expected by Thursday. That's also when an increase in moisture could lead to some snow.

    A wind chill advisory has gone into effect for Fond du Lac and Sheboygan Counties, and will go into effect at noon for all of Southeastern Wisconsin. It will last until 12:00 p.m. Tuesday.

  • Today: Bitter cold and windy with partly cloudy to mostly sunny skies | High: Near 7 | Wind: NW 15-20 mph gusting to 30 mph | Wind chills to -15

  • Tonight: Mainly clear to partly cloudy, windy, and frigid | Low: Near -4 | Wind: NW 10-20 mph | Wind chills to -20

  • Tuesday: Mostly sunny, breezy, and bitter cold | High: Near 8 | Wind: NW 10-15 mph | Wind chills to -25

  • Tuesday night: Partly to mostly cloudy and frigid | Low: Near 3 | Wind: WNW 7-12 mph

  • Wednesday: Partly cloudy and warmer | High: Near 20