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Near 100° each day and dry for San Antonio, with major flooding soon downstream along the Nueces in Live Oak County
SSan Antonio

Near 100° each day and dry for San Antonio, with major flooding soon downstream along the Nueces in Live Oak County

  • July 28, 2026

FORECAST HIGHLIGHTS

THIS WEEK: Highs near 100° and staying rain-free

WEEKEND: Spotty rain (20%), but all will experience triple-digit heat

NUECES RIVER: Continues to flood in McMullen Co., will flood at major stage soon in Live Oak County

FORECAST

South Central Texas faces another scorching day Tuesday with highs near 100°F. The hot, dry pattern is expected to continue through the end of the week as a strong high-pressure ridge remains over Texas. A Heat Advisory is in effect from noon to 7 p.m. with heat indices reaching 108–110°F.

The heat isn’t going anywhere though. Temperatures continue to rise near 100°F and heat indices topping 110°F.

RAIN CHANCES

Rain remains unlikely through the rest of the workweek as the high-pressure ridge keeps skies mostly sunny and conditions dry. By the weekend, the ridge is expected to shift west, allowing a weak front to approach South Central Texas.

Rain will only be very spotty over the weekend as the heat high moves west. (Copyright KSAT-12 2026 – All Rights Reserved)

That front could bring only a 10 to 20 percent chance of isolated showers and thunderstorms Saturday. While a few locations may see brief rainfall, widespread precipitation is not expected, and it’ll mainly be hot and humid.

RIVER UPDATES

River flooding continues along the Nueces from rains 2 weeks ago (Copyright KSAT-12 2026 – All Rights Reserved)

Even though the weather is calm, the Nueces River is still dealing with major flooding from the rain two weeks ago. Water levels are finally starting to drop near Cotulla, but the flood crest is still heading downstream. It’ll reach major flood stage near Three Rivers to George West from Thursday through at least the weekend.

The Nueces River near Three Rivers will reach major flood stage Thursday through the weekend. (Copyright 2026 by KSAT – All rights reserved.)

If you’re in Three Rivers or George West, please stay alert and make sure to follow any instructions from local officials. This flood will be a couple of feet higher than the flood of 2013, cresting near 40 ft.

Daily Forecast

KSAT meteorologists keep you on top of the ever-changing South Texas weather.

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Copyright 2026 by KSAT – All rights reserved.

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