San Antonio weather today (Sunday, May 31) brings partly sunny skies and a high near 91°F — warm, humid, and dry enough to make the most of your outdoor plans before a stormier stretch arrives midweek. Get outside while the getting is good.
Today’s Setup
The National Weather Service is calling for partly sunny skies with that high near 91°F and a light south-southeast breeze around 5 mph. Morning starts muggy — overnight lows held near 73°F — and some patchy fog may linger along the I-35 corridor until around 9–10 AM CT. If you’re headed to Brackenridge Park or the Pearl District early, give it a few minutes to clear. Afternoon sunshine gradually dries out the boundary layer, keeping heat indices more manageable despite the elevated dewpoints. Monday looks nearly identical: patchy fog between 7–8 AM CT, then partly sunny with a high near 92°F.
Best Window To Be Outside
Today and Monday are your two best outdoor days of the week. Light winds, clearing afternoon skies, and essentially zero rain make this prime time for golf and fishing. A round at Brackenridge Golf Course or up in the Hill Country will be gorgeous by midday — a golf ball gift set Titleist is a great excuse to get out. Anglers, Canyon Lake and the Guadalupe River are calling; slip on your polarized fishing sunglasses and hit the water before the heat peaks. Keep an eye on the San Antonio weather forecast as the week progresses.
Rain, Wind, or Heat Risk
No severe weather today — the Storm Prediction Center has no active outlook for the San Antonio area. The city’s notorious Flash Flood Alley is quiet for now. But enjoy it while it lasts. Rain chances return Tuesday and stay in the forecast through Saturday, according to National Weather Service forecasters in Austin/San Antonio. An approaching trough from the west will push precipitable water values to 1.5–1.9 inches by midweek, making locally heavy rainfall possible at times. Widespread flooding concerns are currently low, but stay tuned as timing becomes clearer.
NBA Finals Game 1 — Spurs Host the Knicks Wednesday
The biggest event of the week — honestly, maybe the year for the Alamo City — is NBA Finals: New York Knicks at San Antonio Spurs Game 1 on Wednesday, June 3 at Frost Bank Center. The arena is indoors so weather is no factor once you’re inside, but evening temps in the upper 80s make pre-game tailgating comfortable. Deck out in your Official team gear on Fanatics and lock in your seat through Get tickets on SeatGeek before they disappear. The River Walk will be electric Wednesday night — go Spurs go.
Dinner & Grill Ideas
Tonight is made for the backyard. Fire up the grill for burgers, steaks, or grilled chicken with corn on the cob. An instant-read meat thermometer takes the guesswork out of every cut, and a grill brush and scraper set keeps your grates in top shape. For a fun weekend project, check out our guide on smoking tri-tip like brisket — a $10 hack worth trying this summer. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door.
Next Few Days
Monday (June 1): Near 92°F, patchy fog 7–8 AM CT, then partly sunny and dry. Still a great day to be outside.
Tuesday–Saturday: The pattern turns active. Shower and storm chances arrive Tuesday and stay through the weekend as moisture surges ahead of a western trough. Keep tabs on the forecast and browse outdoor gear deals if you need to prep for the wet stretch ahead. Savor the sunshine this weekend, San Antonio.
