More of the same this weekend with a small chance of rain (Copyright KSAT-12 2026 - All Rights Reserved)
FORECAST HIGHLIGHTS
HOT WEEKEND: Afternoon highs will generally be in the upper 90s, with little change through Sunday.
ISOLATED SHOWERS: Rain chances remain low, generally around 10% to 20%, with the best opportunity near the Coastal Plains and areas east of I-35.
THE HEAT CONTINUES: Temperatures will gradually climb as high pressure strengthens. Some locations could potentially reach 100 degrees.
FORECAST
TAX-FREE WEEKEND
Prepare for a hot, humid weekend as you head out for back-to-school shopping. Highs will reach the upper 90s on Sunday, with humidity making it feel even hotter. While isolated storms are possible near the Gulf Coast and Coastal Plains, most of South-Central Texas will stay dry. Expect heat indices to approach advisory levels in some areas, particularly near the coast.
Sunday breakdown with a high of 97 degrees. (Copyright 2026 by KSAT - All rights reserved.)
BACK TO SCHOOL MONDAY
As students head back to school Monday, expect another hot and humid day. Afternoon temperatures will climb into the upper 90s, with a few isolated sea breeze showers possible near the Coastal Plains. Most areas will remain dry, but outdoor activities could be impacted by the heat.
Another hot and humid day for the first day of school (Copyright KSAT-12 2026 - All Rights Reserved)
EXTENDED OUTLOOK
The weather pattern will remain stagnant over the next several days, with hot, above-normal temperatures as the primary story. Rain chances will diminish by Tuesday as high pressure strengthens, causing temperatures to climb throughout the week. Expect highs in the upper 90s, with some locations potentially hitting 100 degrees or higher.
Extended Forecast. (Copyright 2026 by KSAT - All rights reserved.)
Daily Forecast
KSAT meteorologists keep you on top of the ever-changing South Texas weather.
Shelby Ebertowski joined KSAT 12 News in January 2025. She came to San Antonio from Fargo, North Dakota via the University of North Dakota, where she learned the ropes as a weekend forecaster over two years at KVLY. Her love of weather love began after experiencing Hurricane Harvey in 2017.
Leah Rodriguez joined the Weather Authority Team in 2026 after watching KSAT 12 while growing up in Pearsall. She graduated with a Bachelor's Degree in Meteorology from Texas A&M University and worked in Lubbock for two years.
When she's not watching the radar, Leah enjoys spending time with her family and her dog Luby.