San Antonio rolled out of bed into a wall of humidity on Thursday, June 11, 2026, with early morning temperatures hovering around 79°F and dew points in the low 70s that made the air feel thick and sticky. The forecast calls for a high near 94°F, but it will feel hotter than that, with heat index values expected to climb to about 106°F. There is a slight chance of showers before 10 a.m., although most neighborhoods are expected to stay dry through the afternoon.
Afternoon Heat And Gusty Breezes
This afternoon should run mostly sunny to partly sunny, with south-southeast winds near 10 mph and gusts pushing into the 20s by evening. That combination will drive heat index readings into the 100 to 106°F range, making outdoor labor, sports, and long workouts a risky choice without plenty of water and frequent breaks. Forecasters at the National Weather Service say isolated showers and storms are possible mainly along and east of I-35, and they expect the pattern to shift toward better rain chances late this weekend into early next week.
Where To Cool Off
If the heat is too much, the City of San Antonio keeps a map and list of cooling sites, including libraries, community centers, and senior centers that can open during heat events. Residents can also call 3-1-1 for local assistance. City guidance urges people to drink plenty of water, avoid strenuous activity during peak heat, and check on neighbors or anyone who may not have reliable air conditioning.
Next Week Rain Risk
Looking ahead, models and local forecasters indicate a front will approach Monday, June 15, 2026, into Tuesday, June 16, 2026, bringing the best chance for more widespread showers and thunderstorms. A very moist atmosphere could fuel brief, locally heavy downpours, which may lead to nuisance urban flooding. Anyone with outdoor plans on Monday or Tuesday should keep an eye on updated forecasts, and can expect temperatures to cool back into the 80s once the front moves through.
