National Weather Service United States Department of Commerce

Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Austin/San Antonio, TX

Weather Forecast Office

NWS Austin/San Antonio

Weather.gov > Austin/San Antonio, TX
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Last Map Update: Tue, Jun 16, 2026 at 8:46:27 pm CDT

Heat Safety
Tonight
Weekly Outlook
With potentially hazardous heat in the forecast, make sure you practice heat safety. Drink plenty of water and stay cool. Never leave people or pets alone in a closed car. Consider minimizing the amount of time spent outdoors in the heat.
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Lingering rains associated with the tropical moisture in our area are expected to decrease tonight. A few pockets of heavy rain remain possible in the Coastal Plains. Most of South-Central Texas should stay dry overnight, with increasing clouds in the morning. Temperatures are expected to stay mild with lows mostly in the 70s.
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Early summer heat will steadily build and continue this week, staying in the 90s for most areas to near 100 along the Rio Grande. Humid conditions will make the daytime heat feel hotter with heat indices potentially topping 110F on Thursday. Practice heat safety! It will be mostly dry through Thursday. Medium chances for rain return Friday through the weekend.
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