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.

Halloween will see varying weather conditions across the country, with some places experiencing unseasonably warm temperatures, while others undergo cooler weather and possible thunderstorms. A map from the National Weather Service shows that higher ...

In some states the wind chill may fall below -50 F.

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 Service. "Extremely dangerous heat wave expands from ...