San Antonio’s weather today is sunny and hot, with a high near 96°F and a heat index climbing to 101 under mostly clear skies — the kind of day to knock out outdoor plans before lunch and save the River Walk stroll for evening.
Today’s Setup
The National Weather Service Austin/San Antonio office says upper-level ridging is strengthening across the region, keeping today and Tuesday dry and seasonably hot. Winds stay light out of the south around 5 mph, with a 0% chance of rain. Tonight cools to a mild low around 72°F under mostly clear skies, and Tuesday runs almost identical — sunny with a high near 97°F.
Best Window To Be Outside
Forecasters note heat index values today will reach the 100-degree mark for much of the area. Get dog walks, yard work, or a Brackenridge Park loop done before 10 AM CT, or wait until after 7 PM CT once temperatures ease. Early risers heading out for bass fishing before the heat sets in might grab Strike King Crankbaits from $6 at Bass Pro Shops for the tackle box.
Heat, Rivers, And What We’re Watching
The NWS says today’s heat index is “not quite there” for a Heat Advisory, but forecasters are already discussing one for later this week as humidity builds. River levels on the Nueces, Frio, San Antonio, and Rio Grande basins continue improving after recent flooding, though forecasters are watching for an additional rise on the Nueces River near Asherton — avoid flooded areas if you’re near any of these waterways. Separately, the NWS is monitoring Tropical Depression Two over the northeastern Gulf, which could track toward Texas by Thursday or Friday.
What To Wear Or Bring
Skip the jeans — a lightweight linen shirt and men’s sport sandals will keep you cooler on errands or patio time. Fill an insulated tumbler 30oz before you head out, since dehydration sneaks up fast at 96°F. If you’re cooling off along the river or a Hill Country lake this week, a 2-Person Intex Floating Lounge with Cooler is a smart $24 grab on Amazon.
This Week’s Events
AC/DC brings the POWER UP TOUR 2026 to the Alamodome on July 24 — get tickets on SeatGeek if you’re going, and expect warm, mostly clear conditions for the walk in. Frost Bank Center hosts Hot Wheels Monster Trucks™ Live Glow-N-Fire on July 25; it’s indoors, but the parking lot will still be sweltering, so find tickets on StubHub and plan for shade while you wait. Up in Austin, Grupo Frontera plays Moody Center ATX on July 22 — a Grupo Frontera t-shirt makes a fun keepsake if you’re headed up I-35.
Dinner Tonight
It’s too hot to fire up the stove. Try a cold Thai noodle salad, a build-your-own wrap bar, or smoothie bowls blended in a high-powered blender, with that insulated tumbler 30oz nearby for extra ice water. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door.
Next Few Days
Expect more sunny, dry heat Wednesday, with a high near 98°F. The bigger question mark is Tropical Depression Two, which forecasters say could approach Texas by Thursday or Friday — check back as that track firms up, especially if you’re planning weekend river time.
