Morning Mist and Toasty Temps Precede an Approaching Weekend Chill

A Foggy Start to a Warm Friday

San Antonio residents should exercise caution during the early commute this Friday, February 20, 2026. The National Weather Service has issued a weather impact alert due to patchy-dense fog expected to blanket the city and surrounding areas throughout the morning hours. Visibility may drop significantly, especially along the I-35 corridor and into the Hill Country, with some areas seeing less than a quarter-mile of clarity. Morning temperatures will hover in a comfortable range, starting in the upper 50s to low 60s, making for a humid and misty start to the day.

Unseasonable Warmth in the Afternoon

Once the morning fog lifts, San Antonio is in for a notably warm afternoon. While skies will remain mostly cloudy throughout the day, the mercury is expected to climb well above the February average. Forecasts indicate a high temperature reaching between 76°F and 81°F. This spring-like warmth is part of a trend that has seen South Texas averaging temperatures nearly 10 degrees above normal for mid-February. Despite the cloud cover, the air will feel heavy with humidity, which is projected to stay around 70% during the peak of the day.

Evening Transition and the Approaching Front

The calm and warm conditions will begin to shift as we head into the evening and overnight hours. A significant cold front is projected to settle into the region late Friday. While the most dramatic temperature drops are reserved for Saturday, residents will notice a change in the air as the front approaches. Key evening highlights include:

• Sky Conditions: Persistent cloudiness with a slight 10% chance of isolated showers or sprinkles.
• Temperature: Overnight lows will dip back to around 60°F before the colder air mass fully takes hold.
• Wind: Breezy conditions will likely develop late tonight, signaling the arrival of the weekend cold front.

Looking Ahead: A Weekend Shake-up

While today offers unseasonable warmth, it serves as the final act before a return to seasonably cool February weather. The cold front arriving tonight will bring gusty winds and much drier air by Saturday morning. If you have outdoor plans for later today, enjoy the warmth, but keep an eye on the horizon as the wind begins to pick up. For those heading out early tomorrow, it would be wise to have a jacket ready, as the transition from today's highs will be sharp and swift.