San Antonio Faces Heat Index of 102-105°F Ahead of Back-to-School Week
San Antonio Faces Heat Index of 102-105°F Ahead of Back-to-School Week
US · Published Aug 5, 2026
San Antonio and surrounding areas are experiencing hot and humid conditions, with heat indices ranging from 102-105°F (39-41°C) and potentially higher along the coastal plain.
A high temperature of 98°F (37°C) is expected today, translating to these elevated heat indices.

Impact & Risks

The high heat index poses risks of heat-related illnesses, particularly for those spending extended periods outdoors. Coastal areas may experience even higher heat indices, reaching up to 109°F (43°C). Outdoor activities, including after-school sports practices, will require precautions such as staying hydrated and taking breaks in shaded or air-conditioned areas. Flood warnings are currently in effect for Live Oak and McMullen Counties, though these are unrelated to the heat.

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