The KHOU 11 Weather Team has issued an hourly Weather Impact Alert as temperatures drop into the 20s overnight this weekend.

A winter storm in Houston this weekend brings the threat of freezing temperatures, dangerous wind chills and icy road conditions. See the latest weather forecast, timeline, impacts, warnings and live coverage.

Though both Bush and Hobby Airports are open and operating, more than 100 flights have been canceled between them, according to a flight analyst.

Winter weather is disrupting flights nationwide. Houston Airports have crews ready as passengers face delays, cancellations, and changing travel plans.