San Antonio, TX – Clouds gather over the Alamo City this Friday morning, setting the stage for developing thunderstorms and heavy rain later in the day. Humid air from the Gulf is surging north, combining with a weak boundary to bring scattered downpours and the risk for gusty winds or brief flooding in some neighborhoods.
According to the National Weather Service in Austin/San Antonio, thunderstorms are possible from midday through late Friday night, with a few producing rain totals near one inch and gusts up to 25 mph. Most of the activity will focus south and east of I-35, including San Antonio, Seguin, and New Braunfels.
Friday night stays humid and warm, with lows in the low 70s. By Saturday, showers linger through the morning before sunshine gradually returns in the afternoon. Highs reach the upper 80s, with a fresh breeze signaling improving conditions.
Sunday delivers a full rebound — sunny skies and highs near 90°F, perfect for outdoor plans, family outings, or early Halloween decorating. Winds turn light from the north, and humidity drops slightly, offering a brief taste of late-October warmth before next week’s pattern cools again.
Long-range models hint at another front by midweek, but for now, South Texas enjoys a sun-filled stretch once the storms pass. With Halloween just a week away, early forecasts suggest a mild, dry evening for trick-or-treaters — a welcome shift after this week’s soggy start.
Keep the umbrella close today, then look forward to clear skies and classic fall warmth returning to San Antonio this weekend.
