Gray Skies and Early Drizzle Give Way to a Steamy 80-Degree Sunday

Morning: A Gloomy and Damp Start

San Antonio residents waking up this Sunday, March 8, 2026, will find themselves under a thick blanket of overcast skies. The morning hours are characterized by high humidity, hovering around 82%, and mild temperatures starting in the low to mid-60s. According to local meteorologists, there is a lingering 50% to 80% chance of precipitation during the early hours, as the tail end of Saturday night’s weather system continues to move through the region. While much of the activity will remain light, some localized heavy downpours are possible before 10 a.m., making for a damp commute for those heading to early services or brunch.

Afternoon: Breaking Through the Clouds

As we move into the afternoon, the heavy rain threat is expected to diminish significantly. While the sky will remain mostly cloudy, the atmosphere will warm up rapidly. San Antonio is forecasted to reach a high of 82°F, which is approximately 10 degrees above the seasonal average for early March. The chance of scattered showers drops to around 30% by mid-afternoon, meaning outdoor plans might not be a total wash, though a light jacket or umbrella remains a wise accessory. Winds are expected to be moderate, coming from the south at roughly 10 to 15 mph, adding to the muggy feel of the day.

Evening: A Quiet and Mild Conclusion

By sunset, the rain chances will taper off further, leaving the city with a quiet but cloudy evening. Temperatures will gradually descend from the 80s back into the upper 60s by late evening, eventually bottoming out at a comfortable low of 58°F overnight. Humidity will remain a factor, keeping the air feeling heavy. For those planning to be out late, the clouds will likely obscure any moonlight, but no major severe weather is anticipated during the nighttime hours.

Alerts and Technical Notices

The National Weather Service notes that while the Severe Thunderstorm Watch from Saturday has largely expired, residents should stay alert for isolated pockets of heavy rain in the morning. Additionally, a technical notice remains in effect: the KDFX radar near Brackettville is currently down for repairs. Local forecasters are utilizing surrounding radar sites in New Braunfels and San Angelo to monitor incoming moisture. Drivers should remain cautious on slick roads during the morning hours, though no significant wind or hail warnings are active for the remainder of today.