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Weather San Antonio, TX

San Antonio Weather Today: Mostly Sunny 86°F With Breezy Afternoon Winds

Best Window Monday: 86°F, Mostly Sunny
Rain Risk Low
What To Wear / Bring Sun protection, water, and breathable layers
Useful Links Local forecast, radar, and relevant planning links
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7-Day Forecast

Mon 86°Mostly Sunny
Tue 92°Partly Sunny
Wed 89°Mostly Cloud...
Thu 76°Chance Showe...
Fri 78°Chance Rain ...
Sat 85°Slight Chanc...
Sun 88°Mostly Sunny...

San Antonio is looking at a mostly sunny Monday with a high near 86°F and moderately breezy afternoon winds—perfect weather for getting outside, though you’ll want to keep an eye on pollen if allergies have been bothering you.

The National Weather Service is calling for south winds at 5 to 10 mph this afternoon, with gusts climbing to around 20 mph, so it’ll feel fresher than the temperature alone suggests. If you’re heading to the River Walk or exploring the Hill Country, bring a light layer for the breeze. The overnight low will settle near 61°F under mostly cloudy skies, so it’ll be a comfortable evening—great conditions for anyone planning to catch the Spurs vs. Timberwolves Western Conference Semifinals game at Frost Bank Center tonight.

For tailgating or catching the game, you won’t need much more than a light jacket once the sun sets. If you’re a Spurs fan, grab a San Antonio Spurs jersey or San Antonio Spurs hoodie to show your support, and you can Find tickets on StubHub or Get tickets on SeatGeek if you’re still looking for seats.

The real story starts Tuesday: the National Weather Service Area Forecast Discussion indicates a significant warming trend is underway. Tuesday’s high will climb to around 92°F with partly sunny skies, and heat indices are expected to rise into the 90s to around 100°F across the San Antonio area by the afternoon. That’s when you’ll want to stay hydrated—a Yeti rambler water bottle is perfect for keeping drinks cold during outdoor work or recreation. If you’re planning to golf, hit the links early; check out our guide on the Best Golf Balls for High Handicappers in 2026: Tested, Ranked & Compared to gear up before the heat peaks.

Allergy sufferers should note that rising temperatures and southerly flow will push dew points above the mid-60s, keeping pollen counts elevated. Consider keeping an allergy relief nasal spray or pollen count face mask on hand, especially if you’re sensitive to spring allergens.

Late Tuesday evening, a weak shortwave may spark an isolated nocturnal thunderstorm over the Edwards Plateau and Hill Country as a dryline retreats westward, but coverage will remain low (less than 20% chance), so most of San Antonio should stay dry.

For dinner tonight, the mild evening is ideal for firing up the grill. A tri-tip on the pellet smoker works beautifully—check out our guide on how to Smoke Tri-Tip Like Brisket: The $10 Hack That Works if you want to try something new. If you’d rather keep it simple indoors, pasta or stir-fry are versatile options that work in any weather. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door.

Looking ahead: Expect continued warming Wednesday with heat indices near 100°F, and rain chances return by mid-to-late week at 20–40%. Stay tuned for updates as the pattern shifts.

Live Radar — San Antonio Area

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Live weather radar for San Antonio, TX

Radar data from the National Weather Service