FORECAST HIGHLIGHTS<\/p>\n
SUNDAY: Small rain chances, highs near 100.<\/p>\n
BACK TO SCHOOL: Hot and humid with a few isolated showers.<\/p>\n
HEATING UP: Many areas reaching 100-102 degrees and potentially higher heat indices.<\/p>\n
FORECAST<\/p>\n
TODAY<\/p>\n
High pressure will keep skies sunny and temperatures in the mid-90s to near 100 on Sunday. High humidity will push heat indices to 108 degrees, especially near the Coastal Plains. While most of South-Central Texas remains dry, a 15-20% chance of isolated afternoon showers exists east of I-35.<\/p>\n
Prepare for a hot, humid Sunday as you head out for back-to-school shopping. (Copyright KSAT-12 2026 – All Rights Reserved)<\/p>\n
BACK-TO-SCHOOL: HOT AND HUMID<\/p>\n
The first day back to school will bring more heat and humidity. Monday\u2019s forecast looks very similar to Sunday, with afternoon highs again reaching the mid to upper 90s and possibly near 100 degrees. A few isolated sea-breeze showers could develop during the afternoon, mainly closer to the Coastal Plains, but most of the region should remain dry.<\/p>\n
Another hot and humid day for the first day of school (Copyright KSAT-12 2026 – All Rights Reserved)<\/p>\n
For students, parents, teachers and anyone spending time outside Monday, the bigger concern will be the heat. Plan for a hot afternoon, stay hydrated and take breaks from the heat when possible.<\/p>\n
EXTENDED OUTLOOK<\/p>\n
As the upper-level ridge shifts southeast this week, rain chances fade by Tuesday and temperatures climb to near triple digits. High humidity could push heat indices to 108+ degrees. While humidity may dip next weekend, the region will remain unseasonably hot.<\/p>\n
Extended Outlook (Copyright KSAT-12 2026 – All Rights Reserved)Daily Forecast<\/p>\n
KSAT meteorologists keep you on top of the ever-changing South Texas weather.<\/p>\n
QUICK WEATHER LINKS<\/p>\n
Copyright 2026 by KSAT – All rights reserved.<\/p>\n","protected":false},"excerpt":{"rendered":"FORECAST HIGHLIGHTS SUNDAY: Small rain chances, highs near 100. BACK TO SCHOOL: Hot and humid with a few…\n","protected":false},"author":2,"featured_media":401816,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[171,82,84,83],"class_list":["post-401815","post","type-post","status-publish","format-standard","has-post-thumbnail","category-san-antonio","tag-forecast","tag-san-antonio","tag-san-antonio-headlines","tag-san-antonio-news"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/us-tx\/wp-json\/wp\/v2\/posts\/401815","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/us-tx\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/us-tx\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-tx\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-tx\/wp-json\/wp\/v2\/comments?post=401815"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/us-tx\/wp-json\/wp\/v2\/posts\/401815\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-tx\/wp-json\/wp\/v2\/media\/401816"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/us-tx\/wp-json\/wp\/v2\/media?parent=401815"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-tx\/wp-json\/wp\/v2\/categories?post=401815"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-tx\/wp-json\/wp\/v2\/tags?post=401815"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}