Coldest air of the season hits North Texas ahead of MLK holiday, warmer days ahead with rain, wintry mix possible

The low on Sunday morning was down to 23°F, the coldest morning of the season so far at the DFW Airport. 

Remarkably, the sun and southwest wind pushed the temperatures a full 40° warmer, double the typical difference between morning low and daytime high (the "diurnal"). The DFW Airport hit 63°. This doubling of the diurnal might happen once a year.

For MLK Day, expect some cool weather. Another cold front is moving over North Texas Sunday night. Highs on Monday will barely hit 50°. It'll be mostly cloudy for the early part of the day, and winds will be out of the northwest and brisk through the afternoon.

There is a good chance of some modest rain on Wednesday, especially during the morning commute. Up to a 1/3" to ½" of rain is possible. This entire winter, DFW has only logged 0.09" of rain.

Very cold air, possible sleet on the way

It appears some very cold air is coming in. A cold rain on Friday might turn over to sleet Friday night and then a snow/sleet mix as we get toward Saturday morning.

This could end with some light snow. There are too many variables currently to predict road impacts, but the First Alert Weather team is watching closely and will deliver daily updates. This is not a setup that usually produces significant amounts of winter precipitation.  Right now, temperatures look on the warm side of road problems. If there is a problem, it would likely be Saturday night.