San Antonio is staring down another intense summer day Thursday, June 11, with a high near 94°F and a heat index that could reach 106°F — wrap up any outdoor plans before 10 AM CT or wait until evening.
Today’s Setup
The National Weather Service gives a slight chance of rain showers before 10 AM CT — about a 20% chance — before partly sunny skies take hold and the heat cranks up. South-southeast winds around 10 mph, with gusts to 20 mph, won’t do much to cool things off. If you’re walking the River Walk or visiting the Alamo this morning, start early. The I-35 corridor may see a brief isolated storm in the afternoon, but most of San Antonio stays dry. Tonight, lows drop to around 78°F — still warm, with the heat index holding near 105°F after dark.
Heat Risk
A heat index up to 106°F is serious. This is not the day to push through an outdoor workout at midday or leave pets outside. Stay hydrated, wear light clothing and men’s sport sandals, and keep a Yeti hopper soft cooler loaded with cold drinks if you’re spending time outdoors. Seniors and small children are most vulnerable — check on your neighbors.
Events This Weekend
Big weekend ahead in the Alamo City. The San Antonio Spurs take on the New York Knicks in NBA Finals Game 5 on Saturday, June 13, at Frost Bank Center. The arena is air-conditioned, so the game itself is no weather concern — but the parking lot will be scorching. Rep the team right in a San Antonio Spurs jersey and lock in your seats via Get tickets on SeatGeek. Sunday, June 14, Don Toliver’s Octane Tour hits Frost Bank Center — a Don Toliver t-shirt is the move for the show. Tonight, Charlie Puth’s Whatever’s Clever! World Tour plays Moody Center ATX — grab seats via Find tickets on StubHub before they’re gone.
Beat the Heat at Dinner
Skip the oven entirely tonight. Smoothie bowls, a cold Thai noodle salad, or a build-your-own wrap bar are perfect for a 94°F day. A high-powered blender handles frozen fruit and cold soups in seconds. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door.
Next Few Days
Friday stays hot — high near 92°F with a heat index up to 102°F — and a slight chance of afternoon storms develops after 1 PM CT along the I-35 corridor, according to the National Weather Service. Saturday looks similar: hot and mostly dry. Then Sunday into early next week, a cold front pushing in from the north will increase rain chances significantly. The National Weather Service notes precipitable water values over 2 inches could produce locally heavy rainfall — 1 to 2 inches is possible with stronger storms. San Antonio sits squarely in Flash Flood Alley, so keep an eye on River Walk flood gauges as that front approaches. Check the San Antonio weather forecast for daily updates.
