San Antonio, TX Weather Alert: Rain and Thunderstorms Possible Early Monday Ahead of Thanksgiving Travel

Thanksgiving week starts unsettled, but clearer skies return by midweek.

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Texas — The air feels still and heavy this morning across south-central Texas — a calm before the next change. Warmth builds again today, pushing highs into the upper 70s across San Antonio, but a late Sunday and Monday system could stir up showers and thunderstorms just as Thanksgiving travel ramps up across the state.

According to the National Weather Service in Austin/San Antonio, a 20–40% chance of rain develops late Sunday, increasing into Monday afternoon. Some storms may bring brief downpours, gusty winds, and lightning, mainly along I-35 and I-10 corridors. Travelers heading toward Dallas, Houston, or the Hill Country should watch for delays and slick roadways as the system moves through.

By Tuesday, the rain clears and sunshine returns, setting up ideal weather for early holiday gatherings. Highs rebound near 80°F before a cooler Thanksgiving pattern spreads south late week, tied to a powerful cold front pushing across the central U.S..

Nationally, forecasters are tracking the potential for heavy snow and winter weather impacts from the northern Rockies through the Midwest from November 25th through December 3rd, with cooler air eventually reaching Texas and the Gulf Coast.

Five-Day Outlook (San Antonio, TX):

  • Today: Mostly sunny, high 78°F.
  • Sunday: Slight rain chance late, high 75°F.
  • Monday: Scattered storms, high 79°F.
  • Tuesday: Sunny, high 81°F.
  • Wednesday: Mostly sunny, high 72°F.