Dense Fog Fades to Summer Heat: Saturday’s 85-Degree Surge in San Antonio

Morning: A Shrouded Start

San Antonio residents waking up this Saturday, February 28, 2026, will find the city draped in a thick blanket of low clouds and patchy dense fog. Meteorologists have issued a cautionary note for early morning travelers, as visibility is expected to be significantly reduced between 5:00 a.m. and 8:30 a.m. Morning temperatures are starting off cool, sitting in the upper 50s across the metro area. If you are heading out early for breakfast or Saturday errands, allow extra time for your commute and use low-beam headlights to navigate the misty conditions safely.

Afternoon: The Spring Sizzle

As the fog dissipates by mid-morning, the Alamo City will undergo a rapid temperature spike. By 11:00 a.m., the mercury is expected to climb into the 70s, reaching the 80-degree mark by approximately 1:00 p.m. This afternoon, San Antonio is forecasted to hit a high of 85 degrees—a temperature significantly above the seasonal average. This warm-up is accompanied by a light breeze as southwesterly winds increase to between 10 and 15 mph. The sky will remain mostly sunny throughout the peak heat of the day, making it an ideal afternoon for outdoor activities, though sun protection is recommended as the UV index remains moderate.

Evening: Clouds Gather as the Dry Spell Continues

As evening approaches, the clear skies will begin to give way to increased cloud cover. Saturday night will be mild and cloudy, with temperatures settling into the low 60s. Despite the increase in humidity and clouds, the chance of measurable precipitation remains very low at just 10% to 20%. This continues a historic dry stretch for the region; San Antonio has recorded virtually no rainfall in 32 of the past 33 days. While the night will feel humid, the long-awaited rain chances are not expected to arrive until the middle of the upcoming week.

Forecast Highlights and Safety

• High Temperature: 85°F (Peak around 3:00 p.m. to 4:00 p.m.)
• Low Temperature: 62°F to 64°F (Overnight)
• Wind: Southwesterly at 10–15 mph in the afternoon.
• Warnings: Patchy dense fog advisory through 8:30 a.m.
• Rain Chance: Less than 10% during the day; 20% overnight.