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San Antonio, TX skyline — local weather forecast and conditions
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Weather San Antonio, TX

San Antonio Weather Today: Sunny and Near 90°F With Heat Building All Week

Best Window Today: 90°F, 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

Today 90°Sunny
Thu 91°Sunny
Fri 92°Mostly Sunny
Sat 92°Partly Sunny
Sun 91°Mostly Cloudy
Mon 89°Chance Showe...
Tue 88°Chance Showe...

San Antonio is starting Wednesday, May 13 with gorgeous sunshine and a high climbing to near 90°F — get outdoors early and keep the cold drinks handy, because this is the beginning of a warming stretch for the Alamo City.

Today’s Setup

The National Weather Service says a mid-level ridge shifting east over Texas is driving warm return flow into San Antonio. The silver lining: morning dew points in the 55–65°F range make for a comfortable start near the River Walk and Brackenridge Park. Light southeast winds at 0–5 mph keep things from feeling oppressive — at least until midday. Zero percent chance of rain today, or for several days ahead.

Best Window To Be Outside

Before 11 AM CT is your sweet spot. A morning walk along the Mission Trails or a round at Brackenridge Golf Course feels completely different than that same outing at 2 PM. Planning to tee it up this week? Check out our outdoor gear deals including picks for the best golf balls for high handicappers before you head out.

Heat and Allergy Risk

Temperatures step up each day — 90°F today, 91°F Thursday, 92°F Friday — and the National Weather Service flags gradually increasing humidity and heat indices heading into early next week. Outdoor workers at Lackland AFB or Fort Sam Houston should front-load hydration in the morning hours. Allergy sufferers, take note: dry, breezy conditions and warming temps are peak pollen season, so keep your antihistamines handy before spending extended time outside.

What To Wear

Light layers are the move this week. moisture wicking undershirts men are a must when you’re spending time in the afternoon heat. And an insulated tumbler 30oz filled with ice water should be a constant companion — tuck one in the car and one at your desk.

Events This Week

Spurs fans, pencil in Sunday, May 17: San Antonio could host a West Conference Semifinals Game 7 against the Timberwolves at Frost Bank Center. Indoor, air-conditioned, playoff basketball — the weather’s not a factor, but the seats will go fast. Get tickets on SeatGeek or Find tickets on StubHub before they sell out, and deck yourself out with Official team gear on Fanatics to show out for the Silver & Black.

Also worth the drive: George Strait plays Moody Center ATX in Austin on Friday, May 15. Friday’s forecast is sunny and near 92°F for the cruise up I-35 — plan to arrive early. A George Strait hat makes a perfect souvenir for the show.

Too Hot to Cook? Dinner Tonight

Skip the oven tonight. Cold Thai noodle salad or smoothie bowls are perfect when it’s 90°F outside — a high-powered blender makes quick work of frozen fruit and yogurt. Serve everything in an insulated tumbler 30oz to keep it cold through the meal. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door.

Next Few Days

Rain-free through Sunday, with daily highs in the low 90s and humidity building slowly but steadily. The National Weather Service flags a low chance of thunderstorms returning early next week — enjoy this dry stretch while it lasts. Check the San Antonio weather forecast for any updates as the pattern evolves.

Upcoming Home Games

Plan around the forecast — grab tickets, gear up, and see kickoff conditions.

Spurs Rd 2 Game 7 (if necessary) vs West Conf Semis: Timberwolves
Sun, May 17 · Frost Bank Center

Live Radar — San Antonio Area

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Live weather radar for San Antonio, TX

Radar data from the National Weather Service