The latest forecast from Your Weather Authority (Copyright 2026 by KSAT - All rights reserved.)
FORECAST HIGHLIGHTS
ANY RAIN?: Only very small chances Thursday into the weekend
100° DAYS THIS YEAR: Boston has 2, San Antonio has 1!
FORECAST
RAIN?
It doesn’t look great. But the movement of the heat high later this week may allow for a few showers to make their way up from the coast. The odds remain low at 10%-20%.
100° DAYS
San Antonio has only seen one day at 100° or above this year (we stayed just shy of the mark on Monday). Incredibly, many spots in the nation, including in northeast, have seen more triple digit days than us. That said, we’ll see plenty of upper-90s through the foreseeable future.
Several cities have seen more triple digit days than San Antonio this year. (Copyright KSAT-12 2026 - All Rights Reserved)
Daily Forecast
KSAT meteorologists keep you on top of the ever-changing South Texas weather.
Sarah Spivey is a San Antonio native who grew up watching KSAT. She has been a proud member of the KSAT Weather Authority Team since 2017.
Sarah is a Clark High School and Texas A&M University graduate. She previously worked at KTEN News.
When Sarah is not busy forecasting, she enjoys hanging out with her husband and cat, and playing music.
Justin Horne is a meteorologist and reporter for KSAT 12 News. When severe weather rolls through, Justin will hop in the KSAT 12 Storm Chaser to safely bring you the latest weather conditions from across South Texas. On top of delivering an accurate forecast, Justin often reports on one of his favorite topics: Texas history.