Severe Storms Forecast for San Antonio This Weekend

Heavy rain, thunderstorms, and potential flooding expected across the region on Saturday

Apr. 2, 2026 at 8:35am

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The National Weather Service is warning San Antonio residents to prepare for a significant weather event this weekend, with a 90% chance of widespread showers and thunderstorms expected on Saturday afternoon. The storms could bring heavy rainfall, gusty winds, and the potential for localized street flooding, especially in low-lying areas.

Why it matters

Spring storm systems can often lead to dangerous driving conditions, power outages, and property damage in the San Antonio area. Residents will need to stay vigilant and be ready to take shelter if severe weather develops.

The details

According to the forecast, scattered showers and thunderstorms will begin developing early on Thursday, with a 40% chance of rain before midday. Temperatures are expected to climb to around 86°F, with gusty southeast winds up to 20 mph. By Friday, the atmosphere will remain warm and unstable, with only isolated storm chances during the day. However, the pattern is set to shift sharply into the weekend.

  • On Thursday, scattered showers and thunderstorms will develop early, with a 40% chance of rain before midday.
  • By Friday, temperatures will reach near 89°F, with only isolated storm chances during the day.
  • On Saturday afternoon, rain chances surge to 90%, with showers becoming widespread and thunderstorms likely.
  • Saturday night will keep storms active, with continued rain and gusty winds.
  • On Sunday, a 40% chance of lingering showers is expected, with cooler highs near the upper 60s.

The players

National Weather Service

The federal agency responsible for weather forecasting and issuing weather-related warnings and advisories.

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What they’re saying

“Residents should be prepared for difficult travel conditions and the potential for localized flooding this weekend.”

— National Weather Service, Meteorologist

What’s next

The National Weather Service will continue to monitor the situation and issue updates as the storm system approaches. Residents are advised to stay tuned to local media and be ready to take shelter if severe weather warnings are issued.

The takeaway

This active spring storm system is a reminder for San Antonio residents to be prepared for the unpredictable weather that can occur during this time of year. By staying informed and taking necessary precautions, the community can help minimize the impact of the upcoming severe weather event.