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.

Houston will be mostly cloudy with mild temperatures around 55°F. A cold front will bring cooler weather for the weekend, with temperatures dropping to the 30s for the Houston Marathon. An Arctic blast is expected next week,

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.

Temperatures will slowly rise toward climate-normal levels this week. But another strong arctic cold front will blast through on Saturday.

Houston officials are preparing for severe cold weather expected to hit the region Sunday night, with Mayor John Whitmire announcing the activation of warming centers across the city to protect vulnerable residents.

Houston is preparing for the big chill, ice, and possible snow to hit he area. FOX 26's Damali Keith has what leaders are doing to make sure Houstonians are ready.