Residents of Chicago should not get used to the mild start to this weekend with an arctic cold blast on the horizon.
Cooler air will settle back over Chicago on Sunday after the warmer temperatures from Saturday.
Sunday's chill, however, will pale in comparison to the arctic air set to grip Chicagoland Monday through Tuesday.
Monday's high in the lower 40s will occur in the morning with temperatures set to plunge into the 30s during the afternoon as the arctic air arrives.
Tuesday is then shaping up to be Chicago's coldest day since March with temperatures struggling to climb out of the lower 30s during the day and dropping into the lower 20s at night.
Many of the suburbs will dip into the teens Tuesday night.
The initial blast of arctic air will be accompanied by rain and wet snow on Monday. Motorists should watch for slick spots Monday night, mainly on bridges and overpasses.
The majority of the lake-effect snow that develops Monday night through Tuesday will be directed at northwestern Indiana, but some snow showers will still stream over Chicago. That is especially true for the southern suburbs.
This arctic blast will not be prolonged with the cold expected to ease later in the week.
On the heels of Cyclone Nada, a new and more significant tropical cyclone threatens to take aim at India this week.
Before the coldest air so far this season arrives, parts of the northeastern United States will face bouts of slow and slick travel early this week.
The threat for flash flooding and localized severe thunderstorms will expand across the southern United States early this week.
Nuisance snow will create slippery conditions across parts of the midwestern United States into Sunday night before spreading into the Northeast to start the new week.
The coldest and most far-reaching arctic blast so far this season will spread across the majority of the contiguous United States this week.
The coldest air of the season so far and some snow will pour into the northwestern United States by early this week.
Arctic air settling over Germany may prompt children to leave their shoes for St. Nicholas indoors instead of outside before going to bed on Monday night.
A deadly wildfire exploded in Tennessee this week, charring a popular resort town and causing devastating damage.
Dashing hopes for Christmas Day snowmen and white rolling hills, forecasters predict Britain's weather pattern will leave more to be desired on Dec. 25.
Rounds of heavy rain will heighten the risk for flash flooding across portions of the southern United States through the weekend.