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San Antonio to flirt with triple digits Tuesday

Alamo City could also challenge record high for May 19

Forecast high temperatures for Tuesday, May 19th

SAN ANTONIO – We may have made it through much of spring unscathed by South Texas heat, but it is set to return in a big way Tuesday. A ridge of high pressure is building overhead, and this should allow temperatures to crank up across the San Antonio area and the state of Texas.

Forecast high temperatures for Tuesday, May 19th
  • Temperatures have yet to hit 100° this year in San Antonio, but it could happen Tuesday afternoon.
  • Records could also be broken:
    • San Antonio’s record high for May 19 is 101 degrees, which was set back in 1989. Tuesday’s forecast high for San Antonio is 99 degrees.
    • Del Rio’s record high for May 19 is 104 degrees, which was set back in 1973. Tuesday’s forecast high for Del Rio is 105 degrees.
  • Tuesday will be the warmest day this week, as the ridge is forecast to move away by Thursday. Temperatures should ease by the end of the week
  • Rain chances kick in Thursday and increase by late in the weekend as a disturbance arrives.

About the Author
Justin Horne headshot

Justin Horne is a meteorologist and reporter for KSAT 12 News. When severe weather rolls through, Justin will hop in the KSAT 12 Storm Chaser to safely bring you the latest weather conditions from across South Texas. On top of delivering an accurate forecast, Justin often reports on one of his favorite topics: Texas history.

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