Cold Front Brings Chilly Fiesta Forecast to San Antonio

Gusty winds, falling temps, and showers expected as front moves through on Saturday

Apr. 18, 2026 at 12:27am

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A sweeping, atmospheric landscape painting depicting a dramatic cold front moving in, with heavy clouds and rain dominating the scene and dwarfing any physical structures or events below.As a powerful cold front sweeps through San Antonio, the annual Fiesta celebration faces the challenge of unpredictable spring weather.San Antonio Today

A strong cold front is set to move through San Antonio on Saturday, bringing a significant change in weather conditions. The front will arrive around 10am, with gusty winds up to 35-40 mph, falling temperatures dropping to the low 60s by the afternoon, and rain showers expected, especially Saturday afternoon and evening. The unsettled weather will continue into Monday, with another round of showers and cool temperatures.

Why it matters

The annual Fiesta celebration in San Antonio is a major event that draws large crowds, and the unexpected cold front and wet weather could impact outdoor festivities and events. The sudden change in conditions will require event organizers and attendees to adjust their plans accordingly.

The details

The cold front will arrive in San Antonio around 10am on Saturday, ushering in a significant change in weather conditions. Gusty north winds of 35-40 mph will accompany the front, along with falling temperatures that will drop from the 70s in the morning to the low 60s by the afternoon. Rain showers are expected, especially during the afternoon and evening hours on Saturday. A few rumbles of thunder are also possible. The unsettled weather will continue into Monday, with another round of showers and cool highs only in the low 60s expected.

  • The cold front will arrive in San Antonio around 10am on Saturday, April 19, 2026.
  • Rain showers are expected Saturday afternoon and evening, April 19, 2026.
  • Another round of showers is forecast for Monday, April 21, 2026.

The players

KSAT-12

The local television news station in San Antonio that provided the weather forecast information.

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What’s next

Event organizers for Fiesta San Antonio will need to monitor the weather forecasts closely and adjust any outdoor plans or activities as needed to account for the expected cold front and wet conditions on Saturday and Monday.

The takeaway

The sudden arrival of a strong cold front during the Fiesta celebration in San Antonio will require event planners and attendees to be prepared for a significant shift in weather conditions, including gusty winds, falling temperatures, and periods of rain. This unpredictable spring weather pattern highlights the importance of having flexible plans in place for major outdoor events.