Texas wakes to blurred taillights and damp air hugging the pavement across the I-35 corridor.
Dense fog settles in early across Austin and San Antonio, turning routine Christmas Eve drives into slow, cautious crawls.
A Dense Fog Advisory remains in effect until 9 a.m., with visibility dropping to one quarter mile or less at times. Conditions change quickly, especially near low spots, rivers, and open stretches of highway. The greatest impacts hit early commuters and holiday travelers heading out before sunrise.
Drivers should slow down and use low-beam headlights. Leave extra distance and avoid sudden lane changes. Conditions gradually improve later this morning as clouds thin and visibility increases.
By midday, the story flips. Clouds give way to sunshine, and temperatures surge toward 79 degrees, well above normal for late December. The warm pattern holds through Christmas Day, bringing mostly sunny skies and highs near 79 across the metro.
Thursday night stays mild, followed by a warm and quiet Friday. Post-Christmas travel on Saturday, December 27, looks favorable, with partly sunny skies and highs climbing into the low 80s. Roads remain dry, visibility stays clear, and winds stay light.
Meteorologists are tracking a cooler pattern change late in the weekend. Temperatures trend downward Sunday and into early next week, signaling a more seasonal feel. No winter precipitation is expected locally, but travelers heading north should monitor changing conditions.
For now, Texas remains firmly in a warm December stretch. The biggest hazard arrives early today, not later this week.
Five-Day Outlook – Austin–San Antonio, TX
• Today: Dense fog early, then mostly sunny, high near 79°
• Christmas Day: Cloudy early, clearing, high near 79°
• Thursday: Partly cloudy, low near 65°
• Friday: Partly sunny, high near 81°
• Saturday: Partly sunny, high near 82°
