San Antonio 20 Day Forecast 2025 Hurricane Season. San antonio is bracing for the possibility of freezing rain or even snow later this week amid plummeting morning temperatures. Forecasters have a cold weather advisory in effect for south texas through 9 a.m.

Weather.com brings you the most accurate monthly weather forecast for san antonio,. — nws austin/san antonio (@nwssanantonio) january 5, 2025 on wednesday night, rain begins to move in.