Sun Sep 21st, '25 - Daily Weather for San Antonio

Good morning! Welcome to your Sunday, September 21st, 2025, in sunny San Antonio. Hope you're having a fantastic start to your weekend! - Morning temperature at a refreshing 71 degrees, ideal for a River Walk stroll - Clear skies with southern charm on display - Daytime high of 97 degrees, stay hydrated and wear sunscreen for outdoor activities - Gentle wind from the south at 6 mph, occasional gusts up to 10 mph - Evening will cool to around 89 degrees, clear skies perfect for a sunset - Night temperatures settling at a warm 81 degrees, enjoy outdoor activities Enjoy your day in this beautiful city. I'll be here tomorrow with your next forecast. Have an amazing day!