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.

Another surge of arctic air and freezing temperatures will arrive on Monday into Tuesday. The Houston area is projected to see temperatures as low as 26 degrees late Monday and 24 degrees on Tuesday,