San Antonio residents are bracing for a week of mixed weather as the city prepares for the vibrant Fiesta celebration, which kicks off on April 24, 2025. The National Weather Service has reported a 20 percent probability of showers and thunderstorms on the first day of Fiesta, amidst a backdrop of cloudy skies and warm temperatures.
According to forecasts, the weather will see a gradual clearing of cloud cover later today, revealing mostly sunny conditions with a high near 88 degrees. Southeast winds are expected to range from 5 to 10 mph, with occasional gusts reaching up to 20 mph. However, as the sun sets, the chance of rain increases to 30 percent, particularly after 7 PM.
On April 23, the forecast predicts a 50 percent chance of rain, maintaining a mostly cloudy outlook with high temperatures around 83 degrees. Rainfall amounts are projected to be less than a tenth of an inch unless thunderstorms occur, which could result in higher totals.
As Fiesta festivities commence, the weather could pose challenges for event-goers. Thursday's Fiesta Fiesta, the official opening ceremony at Travis Park, has a 40 percent chance of rain, making it the event most likely to be affected by inclement weather. Scattered thunderstorms are expected to develop across Central and South Texas, although not everyone will see rain. Temperatures during this time will likely be in the lower to mid-80s, but high humidity levels will make it feel warmer.
Friday, April 25, will see several more Fiesta events, including the Fiesta de los Reyes and the Oyster Bake. Fortunately, rain chances are expected to decrease, falling to around 20 percent, meaning that approximately 80 percent of the region is likely to remain dry. However, a slight chance of a storm remains in the afternoon and evening across South Texas.
As the weekend approaches, forecasters predict partly cloudy skies for Saturday and Sunday, with high temperatures nearing 90 degrees. Heat index values, which factor in humidity, could push “feels like” temperatures into the mid-90s. Although a rogue shower or storm cannot be completely ruled out, the general outlook appears favorable for outdoor activities.
Meanwhile, a line of storms that moved through the area on April 22 brought heavy rain and lightning, causing minor street flooding in some parts of San Antonio. The strongest storms were reported in Zavala, Medina, and Frio counties, while San Antonio itself was spared from the worst of the weather.
The National Weather Service has indicated that more storms are expected to pop up later today, April 23, with a 30 percent chance of rain continuing through the evening. CPS Energy has also been monitoring the situation, preparing for potential outages due to severe weather.
As the week progresses, rain chances will continue to fluctuate. Wednesday and Thursday may both see a 50 percent chance of showers or thunderstorms, while Friday could see additional rain. The cloud cover and shower activity are expected to keep daytime highs in the 80s until the weekend.
For those planning to attend Fiesta, it’s advisable to pack rain gear such as ponchos and umbrellas for the first days of the celebration. As the weekend approaches, revelers should prepare for summer weather with sunscreen, hats, shorts, and plenty of water to stay hydrated.
In summary, while Fiesta is set to be an exciting time filled with parades, live music, and cultural celebrations, the weather may bring some unpredictability. San Antonio residents are encouraged to stay informed about the forecast and prepare accordingly to ensure a safe and enjoyable experience during this festive season.
