Our chilly weather could bring freezing rain and snow to parts of the Hill Country and I-35 corridor, local forecasters say. Why it matters: A polar vortex hauling arctic air from Canada down across the U.

The polar vortex of ultra-cold air usually spins around the North Pole, but it sometimes plunges south into the U.S., Europe and Asia. Studies show that a fast-warming Arctic is partly to blame for the increasing frequency of the polar vortex extending its grip.

Storm Blair has hit most of the U.S., bringing freezing temperatures to Texas. Precipitation later this week could mean snow for some areas.

A polar vortex is bringing freezing temperatures to Texas this week, with a couple of rounds of precipitation that could cause issues on untreated roads.

The next round of bitter cold is set to envelop the southern U.S. on Tuesday, after the first significant winter storm of the year blasted a huge swath of the country with ice, snow and wind

Temperatures are plummeting to the 20s for the rest of the week. Overnight lows will drop to the single digits.

Bitterly frigid conditions will blanket southern Louisiana, with temperatures today, tomorrow, and Thursday topping out in the mid- to upper-40s.

Bitter cold and snow in Colorado, travel disruptions expected. Posted: January 7, 2025 \| Last updated: January 7, 2025. Here are the top stories from the 7a.m.

For tonight, expect mostly clear skies with lows near 21 degrees. McDonald's says it is rolling back some of its diversity practices 12 Best Shade Perennials That Won’t Take Over Your Garden What to Know About Trudeau’s Resignation Adrien Brody Nears Tears During Golden Globe Win: ‘I Felt This May Never Be a Moment Afforded to Me Again' I've been on 50 cruises.

The winter storm is over and now the Arctic deep freeze clamps down through midweek. After a few morning flurries we'll end up mostly cloudy with highs in the mid to upper 20s Tuesday.