San Antonio woke up Sunday, June 14, to a thick, soupy sky, temperatures near 80°F, and a dew point around 76°F. Scattered showers and thunderstorms are expected to fire up from late morning through the evening, with a high near 91°F and heat index values topping out around 103°F. Heavy downpours and brief gusty winds could slow afternoon and evening travel, so have a backup plan if you are counting on outdoor time.
Afternoon Storms And Flash Flood Risk
Forecasters are eyeing a round of scattered storms between about 10 a.m. and 4 p.m., with showers and thunderstorms becoming more likely into the evening. The chance of precipitation is near 60%, and many spots are expected to see a quarter to a half inch of rain.
Some storms tonight and Monday could dump rain at a faster clip, leading to pockets of heavier totals. Isolated areas could pick up 1–2 inches and, in rare spots, as much as 5 inches early next week. That raises the risk of localized flash flooding. The National Weather Service Austin/San Antonio urges residents to monitor watches and warnings and to avoid driving through standing water.
What This Means For Your Plans
Commutes could be a soggy mess. Heavy downpours can quickly cut visibility and cause ponding on low-lying stretches of road. If you have outdoor events planned, be ready to move them inside and build in extra travel time when storms are nearby. Keep your phone charged and local alerts turned on so you can pivot quickly if the weather turns.
Heat And Cooling Resources
Even if your neighborhood dodges the rain, the air will feel tropical. Heat index readings near 100–103°F are likely Sunday, so check in on older neighbors, kids, and pets. The City of San Antonio maintains a list of cooling-site locations and heat safety tips, and VIA is offering rides to cooling centers while they are open. If you need help finding relief, call 3-1-1 for local information.
Overnight And Early-Week Outlook
Showers and thunderstorms are likely to continue into the night and return Monday, with overnight lows near 77°F. On Monday, highs should slip into the mid-80s where clouds and rain hang around. A front interacting with abundant tropical moisture will keep rain chances elevated through Tuesday, although there is still some uncertainty about how long this pattern sticks around later in the week.
Before you head out on Monday and Tuesday, check the latest forecast and follow guidance from the National Weather Service Austin/San Antonio.
