Arctic air pouring into the Pacific Northwest and the Plains will also dip as far south of Los Angeles.
It won't be as bone-chilling in Los Angeles as it will be in the Plains, but nighttime temperatures will be in the low 40s through Sunday.
There could be problems inland with a frost and freeze through Thursday night with temperatures in some areas dipping well down into the 20s.
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Those getting a head start on holiday travel across the Rockies and Midwest late this week may be faced with disruptive snow along the way.
While waves of arctic air will continue to pour across the Great Lakes and New England this weekend, milder air will surge farther northward early this week.
The cold reprieve unfolding across the United States will not last long with waves of chilly air set to invade many parts of the country in the days leading up to Christmas.
Urduja, known globally as Kai-tak, will continue to unleash life-threatening flooding rain and mudslides as it slowly crosses the Philippines into Monday.
Winds will again kick up and become strong, raising the risk of rapidly spreading wildfires in Southern California through Sunday as firefighters continue to battle the historic Thomas Fire.
After an unseasonably quiet start to December in the northwestern United States, a significant storm will set its sights on the region spanning Tuesday to Wednesday.
Southern Vietnam and the Malay Peninsula are being put on alert for potential impacts from Tropical Storm Kai-tak later next week after it finishes lashing the Philippines.