San Antonio Braces for Record-Breaking Temperatures

Meteorologists warn of scorching conditions this weekend

Mar. 21, 2026 at 2:52am

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San Antonio residents are preparing for another round of extreme heat as the city braces for near-record breaking temperatures this Friday evening and throughout the weekend, according to the latest weather forecast from KENS5.com.

Why it matters

San Antonio has seen a string of unusually hot days in recent years, putting a strain on the city's power grid and prompting health warnings, especially for vulnerable populations. This latest forecast is the latest sign that climate change is impacting the region.

The details

Meteorologist David Guerrero predicts temperatures will reach the mid-90s Fahrenheit on Friday, with the mercury potentially climbing even higher over the weekend. The forecast calls for sunny skies with little relief from cloud cover or precipitation.

  • The extreme heat is expected to begin on Friday, March 20, 2026.
  • Temperatures are forecast to remain in the mid-to-high 90s Fahrenheit through the entire weekend.

The players

David Guerrero

A meteorologist at KENS5.com who provided the weather forecast for San Antonio.

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What’s next

Local officials are urging residents to stay hydrated, limit time outdoors, and check on vulnerable neighbors as the extreme heat arrives.

The takeaway

This latest heat wave is a stark reminder of the growing threat of climate change in San Antonio and the need for the city to invest in infrastructure and emergency preparedness to protect its residents from the impacts of rising temperatures.