San Antonio

San Antonio to Endure Sizzling Heat Wave with Intermittent Storms, Says National Weather Service

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Published on June 16, 2025
San Antonio to Endure Sizzling Heat Wave with Intermittent Storms, Says National Weather ServiceSource: Google Street View

Residents of San Antonio should brace for a sweltering week ahead, as the National Weather Service forecasts scorching temperatures accompanied by intermittent chances of showers and thunderstorms. Beginning this afternoon, there is a "20 percent chance of showers and thunderstorms after 4pm," with clouds giving way to sun and a peak heat index soaring to a stifling 103 degrees, as the gentle breeze of the morning strengthens, according to the National Weather Service forecasts.

The evening offers a brief respite with showers less likely before 7pm and the night sky mostly clearing up. The low will linger around a warm 75 degrees with a steady south wind. As we move into Tuesday, the city will experience "Sunny, with a high near 96" and the possibility of gusty winds reaching up to 20 mph, posing a challenge for outdoor activities and underscoring the necessity for residents stay hydrated and take precautions against the heat, as reported by the National Weather Service.

The pattern of clear skies continues through midweek, with Wednesday night temperatures holding steady with the previous nights. Juneteenth brings slightly cooler temperatures topping at 92 degrees with "a 30 percent chance of showers and thunderstorms after 1pm," providing a modest reprieve to the citizens celebrating the holiday. Looking ahead to the weekend, residents can expect similar conditions with partial sunshine and ongoing chances for rain, as stated by the National Weather Service.

This week, temperatures are expected to cool slightly, with Friday reaching around 89 degrees and a chance of rain in the evening. For Juneteenth, the forecast is mostly sunny with a high near 92, but there's still a chance of rain, so outdoor plans might need a backup. Evenings will stay more comfortable, with lows around 74 degrees offering some relief from the Texas heat, as per the National Weather Service.