San Antonio Extended Weather Forecast 30 Day 2025 Corvette. 30dayweather long range weather forecasts predict ideal conditions for a storm. A risky day is not a direct prediction of precipitation (rain/snow) but instead a forecast of ideal conditions for a storm to enter the region.
Precipitation will be below normal, with the best chances for snow in early and late february. Weather.com brings you the most accurate monthly weather forecast for san antonio, tx with average/record and high/low temperatures, precipitation and more.