San Antonio is heading into a warm, unsettled Wednesday with a high near 89°F and a 40% chance of afternoon showers and thunderstorms — keep one eye on the radar, especially with NBA Finals Game 1 at Frost Bank Center on the schedule tonight.
Today’s Setup
The National Weather Service says storms fire up after 10 AM CT, driven by a weak shortwave trough pushing out of the Big Bend region combined with leftover outflow boundaries from Tuesday evening’s convection. East-northeast winds of 5 to 10 mph offer a little relief, but humidity stays sticky through the day. The main threats with stronger cells: gusty winds, heavy rain, and lightning. This is a classic Flash Flood Alley setup — scattered coverage means your block on the South Side could get drenched while Alamo Heights stays dry.
Best Window To Be Outside
Morning is your friend. An early walk along the River Walk, a run through Brackenridge Park, or tee time before 9 AM CT all look clean. Once late morning arrives, storm chances start climbing steadily, so have a backup plan for any afternoon outdoor commitments.
What To Wear or Bring
This is a two-items-in-the-car day: toss a compact travel umbrella in your bag and keep a packable rain jacket within reach. Neither takes up space and both are worth having if a storm rolls through during the Spurs pregame commute.
NBA Finals Game 1: Spurs vs. Knicks Tonight
The biggest news in the Alamo City tonight is NBA Finals Game 1 — San Antonio Spurs vs. New York Knicks at Frost Bank Center. The arena is indoors so the weather won’t affect the court, but navigating storm chances on the way there is real. Pad your travel time, check radar before you leave, and consider parking away from low-water crossings if heavy rain hits during the game. Suit up in a San Antonio Spurs jersey and let the Knicks know what this city sounds like. Still looking for seats? Find tickets on StubHub or Get tickets on SeatGeek. The series stays home with games also on Thursday, June 4 and Saturday, June 6 at Frost Bank Center.
Rain Timing and Flood Awareness
Storm chances linger into overnight, with showers possible before 4 AM CT and a low around 72°F. Thursday delivers a near-repeat — partly sunny, high near 86°F, and another 30% chance of storms after 10 AM CT. The National Weather Service is watching for potentially heavy rainfall developing late Thursday into Friday, particularly across the Rio Grande plains and southern Edwards Plateau, with those concerns spreading eastward across the rest of the region on Friday. Anyone near the River Walk or flood-prone areas should monitor conditions closely as that window approaches. Stay connected to the San Antonio weather forecast for updates.
Rain chances are expected to decrease but continue into the weekend as temperatures trend back upward.
Rainy Day Dinner
Skip the grill tonight — this is a programmable slow cooker kind of evening. Load it up with chili or beef stew before you head to the game and it’ll be waiting when you get home. An enameled cast iron Dutch oven works beautifully if you prefer a stovetop pot of soup. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door.
