An arctic front has already moved across the rest of Texas, bringing freezing temperatures. Snow, sleet or ice could come as early as Monday night.

Thousands of runners and walkers take to the streets of Houston this Sunday. Temperatures at the starting line will be in the mid-30s but it will feel like the upper-20s with the wind chill. Temperatures will warm to the lower-40s through the morning under sunny skies. It was actually colder last year.