San Antonio’s Friday starts with the tail end of Bertha’s remnants sliding through, but skies clear to partly sunny by late morning with a high near 95°F and a heat index climbing as high as 104°F — get outdoor errands done early, then ease off once that afternoon sun takes over.
Today’s Setup
The National Weather Service’s Austin/San Antonio office says Bertha, no longer a tropical cyclone, has opened into a weak surface trough. Its remnant band of showers is riding along and mostly south of the I-10/US 90 corridor early this morning, with most spots picking up a half inch of rain or less before activity fizzles out by late morning as it pushes toward the Rio Grande. There’s a small chance of a stray afternoon shower over the Southern Edwards Plateau if daytime heating fires up enough cumulus, but most of the metro should stay dry through the afternoon. Winds run south-southeast at 5 to 15 mph, gusting to 20 mph, so secure anything loose on the patio.
Rain, Flood & Wind Risk
The bigger story is downstream: the NWS reports major to moderate flooding continuing at and below the Nueces River at the Asherton gauge — a reminder of how fast Hill Country and flash-flood-alley waterways can rise even after modest local rain. If you’re headed toward the Rio Grande or western Hill Country creeks this weekend, avoid low-water crossings. Closer to the River Walk, today’s rain totals aren’t expected to cause issues, but keep an eye on NWS updates if you’re near low-lying areas.
Best Window To Be Outside
Saturday looks drier and hotter, with a high near 96°F, 0% rain chance, and heat index around 101°F — mornings before 10 AM CT are your best bet for a jog around Brackenridge Park or a round of golf before the heat builds. It’s also a good Saturday morning to knock out the mowing; if your mower’s on its last leg, the EGO Power+ Battery Deal is worth a look before Hill Country humidity turns yard work into a slog by midday.
Weekend Events & What To Bring
AC/DC’s POWER UP TOUR rolls into the Alamodome tonight, and with temperatures still near 90°F at showtime and gusty SSE wind, tailgaters should bring a windproof lighter for the grill and plan for a warm wait in line — Get tickets on SeatGeek if you’re still looking. Saturday brings Hot Wheels Monster Trucks Live Glow-N-Fire to the Frost Bank Center, an easy indoor pick to dodge the heat with the kids. Looking ahead, Lionel Richie and Earth, Wind & Fire hit the Frost Bank Center on July 28 — check our Lionel Richie and Earth, Wind & Fire weather outlook, grab a Lionel Richie t-shirt, and Find tickets on StubHub. For any outdoor plans this weekend, men’s sport sandals beat closed shoes once the heat index tops 100°F, and it’s worth a look at the UPF 50+ sun hoodie deal for anyone spending real time in direct sun.
Dinner Tonight & Next Few Days
With highs still near 95°F, skip the stove — a cold Thai noodle salad or build-your-own wrap bar keeps the kitchen cool, and a high-powered blender turns extra fruit into a quick smoothie bowl for dessert. An insulated tumbler 30oz keeps drinks cold on the patio once you eat outside as the sun dips. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door. Sunday holds steady near 96°F with similar heat index values, and NWS forecasters expect temperatures to tick up slightly into next week, running at or just above normal for late July — no major pattern change, just steady South Texas summer heat.
