Weather San Antonio Texas 25 Day Forecast 2025 Battery. 7 in san antonio is 63 degrees, but most highs in south texas will climb only into the 40s and 50s today. Weather.com brings you the most accurate monthly weather forecast for san antonio, tx, united states with average/record and high/low temperatures,.

A risky day is not a direct prediction of precipitation (rain/snow) but instead a forecast of ideal conditions. 19 ° 6 ° 27.