San Antonio, Texas – Brutal summer-like heat returns to South Central Texas on Sunday, with temperatures in San Antonio peaking near 96°F and a heat index pushing 102°F. June begins with intensifying sunshine, stagnant winds, and rising UV levels, creating dangerous midday conditions for outdoor activity and travel.
According to the National Weather Service, Sunday’s high temperatures will hit 96°F, and light south-southwest winds will offer little relief. Residents should limit time outdoors between 1 p.m. and 5 p.m., drink plenty of water, and use sun protection. Heat-sensitive groups—including children, seniors, and pets—should avoid prolonged sun exposure.
By Monday and Tuesday, the heat builds further, with daytime highs near 98°F and muggy overnight lows barely dipping below 77°F. No rain is in sight until midweek, when a slight chance of storms returns on Wednesday and Thursday. Winds will remain light and variable, offering little dispersion for lingering air quality concerns—particularly from Canadian wildfire smoke drifting toward East Texas.
Expect mostly sunny skies Sunday through Tuesday, increasing cloud cover by Wednesday, and a 20% chance of isolated storms into Thursday and Friday.
5-Day Summer Weather Preview for San Antonio (June 1–5):
- Sunday: Sunny, high of 96°F, heat index near 102°F
- Monday: Mostly sunny, high 98°F
- Tuesday: Partly sunny, high 95°F
- Wednesday: 20% chance of storms, high 95°F
- Thursday: Slight storm risk, high 97°F
