San Antonio woke up sticky and steamy on Tuesday, June 23, 2026, with pre-sunrise temperatures hovering around 79°F and humidity near 90 percent. By this afternoon, the city is headed for a hot, breezy setup, with much of town feeling hotter than the thermometer lets on as soupy air and gusty winds team up.
Afternoon Heat And Gusty South Winds
The high today is expected to land near 93°F, with heat index values briefly pushing up to about 102°F and south-southeast winds around 5 to 10 mph, gusting to 20 mph, according to the National Weather Service. Forecasters say those extra-toasty feels-like readings should be spotty and short-lived, so no Heat Advisory is in effect. Still, if you are planning to be outside this afternoon, keep water handy and know where you can duck into the shade.
Where To Cool Off
For anyone without reliable air conditioning, the City of San Antonio maintains an interactive list of more than 60 cooling sites, including libraries, community centers, pools and senior centers, and can extend hours or open additional locations when the heat drags on. Residents can call 311 or check the city's heat hub for the latest information on where to cool down, per the City of San Antonio. Officials also urge people to look in on older neighbors and anyone who works outdoors, and to treat heat illness as an emergency if symptoms like confusion, fainting or very high body temperature show up.
Heat Through The Week
Dry, above-normal temperatures are expected to hang around through the weekend and into early next week, with highs mostly in the low to mid 90s and several afternoons featuring elevated heat index values. The strongest heat and highest feels-like readings should show up along and east of I-35 and across the Rio Grande plains. With little rain in the forecast, outdoor plans should be built around hot, mostly dry weather and occasional breezy afternoons.
On hot days, try to avoid strenuous outdoor work during the peak heating window from about 2 to 7 p.m., stay hydrated and never leave children or pets in parked vehicles. For cooling-center locations and official heat-safety guidance, call 311 or visit the city's heat hub before heading out.
