San Antonio Faces Persistent Heat Wave with Elevated Heat Indices
San Antonio is continuing to experience summer heat and humidity, with temperatures expected to be near 100° and heat indices approaching 108° into next week. Daily chances for showers and thunderstorms are returning, particularly along the Coastal Plains.
San Antonio, TX, September 6, 2026 — The city of San Antonio is currently experiencing sustained summer heat and humidity, with conditions expected to persist into the upcoming week. High temperatures are forecast to remain near 100 degrees Fahrenheit.
In addition to the high actual temperatures, the combination of heat and humidity is projected to push heat index values, commonly referred to as “feels like” temperatures, to approximately 108 degrees Fahrenheit. This elevated heat index poses significant risks to public health, underscoring the importance of heat safety measures.
Meteorological forecasts indicate a return of daily chances for showers and thunderstorms. These precipitation events are expected to be most prevalent in areas situated along the Coastal Plains. The specific timing and intensity of these storms may vary, but their presence offers a potential, albeit temporary, respite from the intense heat.
Residents are advised to take precautions to avoid heat-related illnesses, such as staying hydrated, limiting outdoor activities during peak heat hours, and seeking cool environments when possible. The duration of the current heat wave and the extent of rainfall remain key factors for the region’s weather outlook over the next several days. Specific details regarding the contractor’s name, the exact timeline for the heat wave’s end, or the precise percentage chance of storms were not provided in the trend summary.
Story summarized from the original created by Shelby Ebertowski on www.ksat.com, see more information here.
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