Johnny Garcia walks along Broadway Street to get out of the rain while a storm passes downtown San Antonio on Thursday, Oct. 1, 2026.
Andrew J. Whitaker/San Antonio Express-News
In South Texas this year, rainfall has not been spread out evenly throughout the year.
Early on, San Antonio was extremely dry, recording less than 2 inches of rain through the first three months of the year. However, the spring season was very active across the region, with more than 19 inches of rain recorded between April and June.
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Altogether, San Antonio has recorded 29.63 inches of rain so far in 2026, which is 2.13 inches above average through this point in the year. The surplus is due mainly to that April through June timeframe, a period in which San Antonio recorded two-thirds of its annual rainfall thus far.
San Antonio is actually outpacing most other Texas cities. Austin has recorded just over 25 inches of rain so far, while Dallas has measured 26.72 inches — both of which are about 3 to 4 inches of rain below average through late October.
However, San Antonio is going through another dry spell now, as no measurable rainfall has been recorded in the Alamo City over the past 22 days. Rain chances, though, could increase again by the second half of this week. Here’s what you can expect.
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San Antonio forecast
Sunday: A pleasant morning is expected across South and Central Texas, albeit a few degrees warmer than the past few days. San Antonio temps will sit in the low to mid-60s through 9 a.m., rising steadily into the mid-70s by 11 a.m.
With more atmospheric moisture moving into the region, mostly cloudy skies are expected throughout the day. That will limit high temperatures to around 82 degrees, only a few degrees above average for this time of the year. A few isolated sprinkles are possible, but most areas will stay completely dry.
Shown are the expected high temps across the region on Sunday.
Pivotal Weather
Early this week: Similar weather conditions are expected for the first half of the work week. From Monday through Wednesday, San Antonio low temperatures are expected to fall only into the low 60s each day, while afternoon high temperatures will top out in the upper 70s to low 80s. Skies will also stay mostly cloudy.
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A few rain showers will also become possible on Tuesday and Wednesday. However, overall rain chances will only be near 20%. Rainfall, if any, will likely be very brief, keeping rainfall totals at less than a tenth of an inch.
Rain chances rising late-week
A broad area of low pressure is expected to develop across the western U.S. by the second half of the week. This will aid in transporting Pacific moisture into Texas, including the potential remnants of Hurricane Vance.
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Shown are the potential rainfall totals across Texas over the next five days, according to the National Blend of Models.
Pivotal Weather
This will cause rain chances to rise significantly across South and Central Texas. As of now, San Antonio will have about a 40% chance of rain Thursday, rising to a 50% chance of continued showers and storms on Friday. A few showers may also linger into Halloween, but chances will likely fall to around 30%.
It should be noted, however, that there is still a lot of uncertainty in regards to overall rain chances and rainfall totals. The National Blend of Models shows that San Antonio can expect modest rainfall between 0.5 and 1 inch of rainfall over the next five days, but be sure to stay tuned for updated forecast totals in the coming days.