Scorching Week Ahead: San Antonio Braces for Sustained 100-Degree Heat Wave

San Antonians can expect the mercury to flirt with triple digits consistently throughout the week. For today, residents will navigate a high near 99 degrees, feeling more like 104 when accounting for the heat index, and the evening will offer little reprieve as temperatures settle around 78 degrees, according to the latest weather update.

As we advance into the week, Tuesday promises a high near 100 degrees, peaking with a heat index of 105; this pattern of relentless warmth rolls unbroken into Wednesday, with a high aiming to reach 102 degrees, a small southeast breeze of around 5 mph hardly stirring the still air. Nightfall is bringing temperatures down to around 78 degrees.

The forecast from the National Weather Service suggests Thursday will inch even higher, reaching potentially 103 degrees under the unyielding sunshine. No relief is seen in the calm wind that is slated to pick up an east-southeast in the afternoon at about 5 mph. And come nightfall, the air is expected to stagnate once more, maintaining a warm threshold at around 78 degrees.

By the week's end, Friday, with sunny and sweltering conditions, maxing out near 103 degrees yet again, and as the week folds into the weekend, there is an unwavering continuance of this heatwave, with a forecast of 103 degrees for Saturday and the thermometer predicted high near 102 degrees for Sunday.