Storms Build Across South Central Texas, Impacting Commutes

Rain chances increase through the week, with a 60% chance of showers and storms on Tuesday.

Apr. 19, 2026 at 8:49am

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A vast, atmospheric landscape painting depicting a rain-soaked highway cutting through a dramatic, stormy scene, with the road and surrounding structures dwarfed by the overwhelming scale of the weather.The looming storm clouds and heavy rain over the Austin-San Antonio corridor serve as a powerful reminder of the region's vulnerability to severe weather disruptions.San Antonio Today

Damp air and lingering showers are already impacting the morning commute in the San Antonio area, with the National Weather Service forecasting an 80% chance of showers and thunderstorms developing by Monday. The pattern is expected to intensify into Tuesday, with a 60% chance of showers and storms across South Central Texas that could bring heavy rain, lightning, and localized street flooding during peak travel times.

Why it matters

Severe weather can significantly disrupt transportation and daily routines in the Austin-San Antonio corridor, one of the fastest-growing metro regions in the U.S. Advance warning allows residents and commuters to plan ahead and take necessary precautions.

The details

Scattered showers are already impacting the morning commute in San Antonio, with slick roads and reduced visibility. The rain chances increase to 80% by Monday, with periods of heavy downpours possible, especially during peak travel hours. On Tuesday, a 60% chance of showers and storms is forecast, which could bring heavy rain, lightning, and localized flooding that may impact the morning and afternoon commutes.

  • Scattered showers are already impacting the Monday morning commute in San Antonio.
  • Rain chances increase to 80% by Monday, with periods of heavy downpours possible.
  • On Tuesday, a 60% chance of showers and storms is forecast, which could impact both the morning and afternoon commutes.

The players

National Weather Service in Austin/San Antonio

The regional office of the National Weather Service that provides weather forecasts and warnings for the Austin-San Antonio area.

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What they’re saying

“Rain chances increase again quickly, with an 80% probability of showers and thunderstorms developing by Monday. Periods of rain could produce brief downpours, especially during peak travel hours.”

— National Weather Service

What’s next

Residents and commuters in the Austin-San Antonio region should monitor the latest weather forecasts and be prepared for potential travel disruptions, especially during the Tuesday morning and afternoon commutes.

The takeaway

Severe weather in the Austin-San Antonio corridor can have significant impacts on transportation and daily routines. Advance warning allows residents to plan ahead and take necessary precautions to stay safe during heavy rain, lightning, and potential flooding.