San Antonio, Texas – Brutal summer heat and growing haze are taking hold across South Central Texas, with San Antonio expected to hit 95°F by Friday afternoon. Heat index values could climb to 102°F, prompting safety concerns for outdoor workers, commuters, and weekend travelers.
According to the National Weather Service, a weak cold front will stay north, allowing a warm, humid air mass to dominate the region. A 20% chance of isolated thunderstorms remains after 4 p.m. Friday, but the main threat will be heat exposure. Drivers along I-35 and local roads should stay hydrated and check vehicles before travel, especially with weekend haze reducing visibility.
Friday night will remain warm with lows near 75°F under partly cloudy skies. By Saturday, widespread haze sets in — driven by stagnant air and high humidity — with daytime highs again near 95°F. Light southerly winds will do little to ease conditions.
Sunday and Monday look nearly identical: highs in the mid-90s, gusts near 20 mph, and dense haze that could impact air quality and visibility across Bexar County and surrounding areas.
Outdoor plans this weekend? Shift them to early mornings or evenings, and limit strenuous activity midday. Heat illnesses remain a risk.
🔥 Five-Day Forecast for San Antonio (Thurs June 26 – Mon July 1):
- Thursday: Partly sunny, 95°F, slight storm chance late
- Friday: Mostly sunny, 94°F, heat index up to 102°F
- Saturday: Hazy, 95°F, poor visibility possible
- Sunday: Hazy, 94°F, breezy with gusts to 20 mph
- Monday: Continued haze, 97°F, humid and hot
