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Heavy thunderstorms early Saturday morning brought flash flood warnings, Imminent Threat alerts and low-water crossing closures to parts of San Antonio. Some areas received more than two inches of rain.
CPS Energy reported as many as 17,000 customers without power Saturday after more than 10,000 lightning strikes caused widespread damage across its system. By late Sunday morning, about 500 customers remained without electricity as crews continued restoration efforts.
A few showers and thunderstorms remain possible through early Sunday afternoon, but forecasters say a drying trend is underway. Skies are expected to become mostly sunny later in the day, with a high near 90 and heat index values as high as 103.
The first full week of summer looks hotter and mostly dry. Monday is expected to start mostly cloudy before gradually becoming sunny, with highs in the low 90s. Temperatures are forecast to remain in the low-to-mid 90s through the week with only minimal chances for rain.
South Central Texas transitions from morning storms and humid heat on Friday to a hotter, drier week ahead. Saturday brings lingering rain chances up to 60%, but showers dry out completely by Monday, June 22. Temperatures will climb from the mid-90s into the low 100s. pic.twitter.com/BSwEqlTEtQ
— NWS Austin/San Antonio (@NWSSanAntonio) June 20, 2026
