National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

Port Aransas, Mustang Beach Airport (KRAS)

Lat: 27.81°NLon: 97.09°WElev: 7ft.

Fair

89°F

32°C

Humidity 74%
Wind Speed S 9 mph
Barometer 30.07 in
Dewpoint 80°F (27°C)
Visibility 10.00 mi
Heat Index106°F (41°C)
Last update 21 Aug 12:55 pm CDT
Extended Forecast for

Port Aransas TX

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 89. Heat index values as high as 106. Southeast wind 10 to 13 mph.

    High: 89 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 81. South southeast wind 10 to 13 mph.

    Low: 81 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 88. Heat index values as high as 100. South southwest wind 7 to 11 mph.

    High: 88 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 81. South southeast wind 9 to 13 mph.

    Low: 81 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 89. South southwest wind 6 to 10 mph.

    High: 89 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 81. South southeast wind around 11 mph.

    Low: 81 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 90. South wind 7 to 10 mph.

    High: 90 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 81. Southeast wind 11 to 14 mph, with gusts as high as 18 mph.

    Low: 81 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90. South wind 8 to 11 mph.

    High: 90 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 89. Heat index values as high as 106. Southeast wind 10 to 13 mph.
Tonight
Mostly clear, with a low around 81. South southeast wind 10 to 13 mph.
Saturday
Mostly sunny, with a high near 88. Heat index values as high as 100. South southwest wind 7 to 11 mph.
Saturday Night
Mostly clear, with a low around 81. South southeast wind 9 to 13 mph.
Sunday
Sunny, with a high near 89. South southwest wind 6 to 10 mph.
Sunday Night
Mostly clear, with a low around 81. South southeast wind around 11 mph.
Monday
Sunny, with a high near 90. South wind 7 to 10 mph.
Monday Night
Mostly clear, with a low around 81. Southeast wind 11 to 14 mph, with gusts as high as 18 mph.
Tuesday
Sunny, with a high near 90. South wind 8 to 11 mph.
Tuesday Night
Mostly clear, with a low around 81.
Wednesday
Sunny, with a high near 90.
Wednesday Night
Mostly clear, with a low around 81.
Thursday
Sunny, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port Aransas TX
 27.82°N 97.06°W
Last Update:
1:51 am CDT Aug 21, 2026
Forecast Valid:
1pm CDT Aug 21, 2026-6pm CDT Aug 27, 2026
 
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Additional Resources

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Hourly Weather Forecast

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Chance of Precipitation