Mon Sep 21st, '26 - Daily Weather for San Antonio

Good morning, San Antonio! This is your weather for Monday, September 21st, 2026. I hope you're ready to start off the week strong in this lively Texan city! - Morning temperature at a warm 75 degrees with a hint of light rain - Mostly clear skies at 11 percent cloud coverage - Afternoon high soaring to 100 degrees; stay hydrated and seek shade - Southeast breeze at 3 mph for slight relief - Evening temperatures cooling to 91 degrees; light drizzle possible - Night temperatures dipping to a comfortable 80 degrees with clear skies Thank you for tuning in, and be sure to check back tomorrow for your latest update. Take care!