SAN ANTONIO, Texas – Humid air and darkening skies signal a stormy shift as a fall front pushes toward South Central Texas. By Friday morning, that front is expected to ignite clusters of thunderstorms capable of heavy rain, lightning, and gusty winds around San Antonio and along I-35. Residents should plan for slower commutes and brief downpours that could pond on roads during peak travel hours.
According to the National Weather Service in Austin/San Antonio, showers will expand Friday afternoon, with thunderstorms most likely late Friday night into early Saturday. Some storms could drop more than an inch of rain in localized areas, especially west of the city into the Hill Country. Southeast winds near 20 mph may also make outdoor events difficult through Saturday morning.
By Saturday afternoon, the rain is expected to taper as cooler, drier air slides in from the north. Temperatures will hold in the upper 60s under lingering clouds, then rebound quickly by Sunday with highs near 85°F and abundant sun — a welcome change for weekend cleanups, early holiday decorating, or fall festivals returning to dry ground.
While South Texas stays mild, much of the Midwest braces for a first frost and even flurry chances near the Upper Peninsula, a reminder that winter patterns are edging closer. For now, Texans should keep an umbrella handy and stay alert for lightning and slick pavement during Friday’s stormiest stretch.
Five-Day Forecast for San Antonio, TX:
Thu: 90/72 – Partly sunny; light south breeze.
Fri: 89/69 – Showers & thunderstorms likely; gusts near 20 mph.
Sat: 83/66 – Showers early, turning cooler; drying late.
Sun: 85/66 – Sunny, warm; lighter wind.
Mon: 86/68 – Mostly clear and calm; early signs of a warmer week.
