Houston has been experiencing below-average temperatures as a polar vortex ushers in cooler conditions across the state.

The colder-than-normal temperatures in Houston are part of a larger pattern of Arctic air sweeping through Texas and much of ...

A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the ...

A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to ...

A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of ...

DALLAS - Most of the nation is in good shape on Wednesday and will be warmer on Thursday. The arctic air is coming, but not ...

A winter storm that is expected to begin in Texas next week could end up bringing snow and ice to parts of Florida.

As a slug of polar vortex-fueled arctic air overtakes the eastern two-thirds of the U.S. next week, a storm system could ...

Some areas of the U.S. may see temperatures as low as -20 or -30 degrees early next week as arctic air from Siberia rolls in.

A blast of Arctic air is set to cover much of the United States with temperatures below freezing starting on Friday and into ...

The unseasonable chill that has swept through the eastern half of the US defies last year's mild winters and the South's ...

Throughout the week in Texas, temperatures will remain pretty mild for winter in the Lone Star State. Many in the state will ...