San Antonio is rolling into Wednesday, June 24, 2026, on the sticky side, with a warm, muggy start in the upper 70s and low clouds giving way to a mostly sunny afternoon. The forecast calls for a high near 93°F today with south winds at 5–15 mph and gusts up to 25 mph. Overnight lows will hang in the low to mid‑70s, which will not offer much relief for anyone without air conditioning.
Afternoon Winds Pick Up
Southerly winds are expected to crank up through midday and into the early evening, with gusts near 25 mph that could kick up dust and make canopies at parks and pop‑up events work overtime. Motorists towing trailers and cyclists should keep an eye out for cross‑winds during the gustiest periods. According to NWS Austin/San Antonio, similar breezy conditions are expected into the weekend.
Heat Through The Weekend
Highs will stick in the low 90s today and Thursday, then climb into the mid‑90s by Friday and through the weekend, with heat‑index readings likely near 100–101°F in many neighborhoods. No organized rain is expected while the subtropical ridge keeps conditions dry, so outdoor events will feel hot, sticky, and a bit relentless. For locations and tips on cooling centers and other community resources, consult the city's heat safety guidance, according to City of San Antonio.
What To Expect And Tips
Plan on muggy mornings and limited overnight cooling, so try to schedule strenuous outdoor work or exercise for early morning or later in the evening, and take frequent water breaks. Secure loose outdoor gear and shade structures ahead of the gustiest afternoon periods, and keep kids and pets out of direct sun during peak heat. For background on the recent run of high heat and earlier advisories, see Juneteenth cookouts sizzle.
Bottom line: it will be a hot, dry stretch with breezy afternoons - stay hydrated, seek shade, and check local updates if conditions change. We will update this space if the National Weather Service issues any watches or advisories for Bexar County.
