"A significant Arctic outbreak" is expected this weekend, forecasters say, bringing with it "bitterly cold temperatures." ...

States across the central and eastern U.S. are under extreme heat watches and warnings as the areas face a dangerous heat wave throughout the first half of the week, according to the National Weather ...

As the U.S. sizzles under sweltering summer heat, those hoping for a cool fall may be out of luck. The National Oceanic and Atmospheric Administration's Climate Prediction Center released its latest ...

Winter storms and extreme cold are forecast to wallop the U.S. with snow and ice through the weekend. Prepare for power outages and transportation issues.

The National Weather Service warned of "life-threatening cold" into Tuesday, with temperatures in northeastern Montana ...