Weather
San Antonio, TX Weather Alert: Heavy Rain Possible Oct. 29-30
San Antonio, TX – Rain chances are expected to climb across South Central Texas from Wednesday, Oct. 28, through Friday, Oct. 30, with the greatest potential for locally heavy rainfall Thursday and Fr
By Marcus Hale · 2026-10-27T08:23:43.168Z
San Antonio, TX – Rain chances are expected to climb across South Central Texas from Wednesday, Oct. 28, through Friday, Oct. 30, with the greatest potential for locally heavy rainfall Thursday and Friday. Communities west of San Antonio could see particularly wet conditions heading into Halloween weekend.
According to the National Weather Service Austin San Antonio office, rain chances will increase throughout the workweek, especially across the Rio Grande Plains and southern Edwards Plateau. Forecasters say locally heavy rainfall is possible, although widespread flooding has not been forecast in the latest update.
Thursday, Oct. 29, could bring a significant increase in rain chances across western communities. Del Rio faces a 95% probability of precipitation, while Rocksprings has a 90% chance. Eagle Pass and Uvalde each have an 85% chance, with Kerrville at 75%.
San Antonio's rain probability reaches 65% Thursday, while Fredericksburg also stands at 65%. Austin has a lower 15% chance Thursday before increasing to 50% Friday.
Friday, Oct. 30, remains another potentially wet day. Del Rio maintains a 95% rain chance, Rocksprings remains at 90%, and Eagle Pass has an 85% probability. San Antonio's chance decreases to 50%, while Uvalde remains elevated at 80%.
Temperatures will also cool slightly. San Antonio's afternoon highs are forecast near 77 degrees Thursday and Friday, compared with 83 degrees Wednesday. Fredericksburg could see highs near 71 degrees Friday.
Motorists traveling along Interstate 35, Interstate 10 and highways across western South Central Texas should monitor changing conditions, particularly where heavier showers develop.
Rain chances decrease substantially Saturday, Oct. 31, with drier conditions expected Saturday night into Sunday, Nov. 1.
Residents should continue monitoring National Weather Service updates as the forecast evolves.