Weather
Texas Weather This Week: Temperatures Surge to 91° by Thursday Oct 22
San Antonio, TX – A dramatic temperature turnaround is coming to Central and South Texas this week, with afternoon highs climbing from the comfortable 70s Sunday into the upper 80s and lower 90s by Th
By Natalie Rhodes · 2026-10-18T10:51:50.661Z
San Antonio, TX – A dramatic temperature turnaround is coming to Central and South Texas this week, with afternoon highs climbing from the comfortable 70s Sunday into the upper 80s and lower 90s by Thursday, October 22.
According to the National Weather Service Austin/San Antonio office, mostly sunny skies and cooler temperatures will dominate Sunday, October 18, before a steady warming trend develops across the region through the upcoming workweek.
Temperatures Could Reach 91 Degrees by Thursday Sunday afternoon highs are expected to range from the upper 60s to upper 70s, with Austin reaching approximately 75 degrees and San Antonio climbing to 73 degrees.
Cooler conditions will be especially noticeable overnight, with temperatures dropping into the 40s and lower 50s across much of the region.
However, the cooler weather will not last long.
By Tuesday, October 20, Austin is forecast to reach 83 degrees, while San Antonio climbs to 83 degrees. Uvalde could reach 88 degrees.
Wednesday brings another temperature increase, with highs reaching 86 degrees in Austin and San Antonio and 90 degrees in Uvalde.
By Thursday, October 22, Uvalde and Cuero could reach 91 degrees, while Eagle Pass approaches 90 degrees.
Warm Weather Continues Into Friday The warming trend is expected to continue through Friday, October 23.
Austin could reach 89 degrees, while San Antonio is forecast to climb to 87 degrees. Cuero, Uvalde and Eagle Pass could see highs around 90 degrees.
Overnight temperatures will also become progressively warmer.
Austin's forecast low rises from 51 degrees Sunday to 61 degrees Friday, while San Antonio's overnight temperatures climb from 52 to 63 degrees.
Dry weather is expected to accompany the warming trend, providing favorable conditions for outdoor activities, although residents should prepare for increasingly warm afternoons.
The forecast highlights a notable return to summerlike temperatures despite the calendar moving deeper into October.
Residents can monitor updated local forecasts at weather.gov/ewx.