Isolated weekend rain, heavy downpours on Monday

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FORECAST HIGHLIGHTS

FORECAST

TODAY

It’s another hot and humid day ahead! The heat index, which is what the temperature feels like when humidity is factored in, is expected to exceed 100°F this afternoon. While there’s a slim chance (20%) that some areas may get a refreshing downpour, most of us will likely stay dry.

Today’s Forecast
(Copyright KSAT-12 2026 – All Rights Reserved)

WEEKEND

This weekend, expect a bit more moisture in the air, leading to an increased chance of rain, particularly on Sunday, where the likelihood of showers jumps to 40%. While the rain will be sporadic, if you do get caught in a downpour, be prepared for some brief but heavy rainfall. The heat and humidity will persist.

Weekend Forecast
(Copyright KSAT-12 2026 – All Rights Reserved)

MONDAY

On Monday, a weather front will move into South Texas, lifting a saturated air mass and increasing the potential for heavy downpours. These showers will mainly occur along the boundary as it shifts south during the afternoon into the evening hours. Be cautious, as there is a risk of street flooding due to heavy rainfall. Rain chances should diminish by early Tuesday morning.

Future radar on Monday evening
(Copyright 2026 by KSAT – All rights reserved.)
A risk for flooding exists on Monday
(Copyright KSAT-12 2026 – All Rights Reserved)
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