ALT The anticipated cold front has slowed compared to previous forecasts. Below is the updated timing of arrival of heavy rainfall for south-central Texas for today. Stay tuned to trusted sources for changes in the forecast and issuance of any Flood or Flash Flood Warnings.

ALT An National Weather Service infographic warns of heavy rain and flash flooding in South Central Texas from Sept 30 to Oct 3, 2026. Four outlook maps highlight a Level 3 of 4 threat on Oct 1. Expected rainfall totals are 2–4 inches, with isolated amounts up to 8 inches.

ALT A weather forecast table for South Central Texas spanning September 30 to October 6, 2026. The chart lists fifteen cities—including Austin, San Antonio, Del Rio, and New Braunfels—showing daily Highs, Lows, and Rain Chances. A headline reads, "A Final Day of Hot and Humid Weather; Then Stormy & Cooler with Heavy Rain & Flooding Possible." The data indicates temperatures peaking on Wednesday, September 30 (with highs ranging from 89 to 98°F), followed by a notable cooling trend and high chances of rain (up to 95%) on Thursday and Friday.

ALT A Flood Watch graphic from the National Weather Service Austin/San Antonio, updated September 29, 2026. The watch is in effect for much of South Central Texas from 7 PM Wednesday (Sept 30) through 7 PM Friday (Oct 2). On the left, key details warn that life-threatening flooding is possible, with widespread rainfall totals of 2 to 4 inches and isolated amounts up to 8 inches. Rivers, creeks, streams, and low-lying areas could flood quickly. On the right, a map shades the watched region in green, covering areas including Austin, San Antonio, Kerrville, Rocksprings, and Del Rio.