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 >

Hazardous Weather Conditions

Current conditions at

Beaumont/Port Arthur Southeast Texas Regional Airport (KBPT)

Lat: 29.95°NLon: 94.03°WElev: 13ft.

Mostly Cloudy

91°F

33°C

Humidity 64%
Wind Speed W 8 mph
Barometer 30.07 in (1018.1 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 21 Aug 10:53 am CDT
Extended Forecast for

Port Arthur TX

Extreme Heat Warning until August 21, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning until August 21, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • Today

    High: 97 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 79. South wind 5 to 10 mph.

    Low: 79 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 98. Heat index values as high as 111. West wind around 5 mph.

    High: 98 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 80. Southwest wind around 5 mph.

    Low: 80 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 98. West wind around 5 mph becoming south in the afternoon.

    High: 98 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 80. South wind around 5 mph.

    Low: 80 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 96. Southwest wind 5 to 10 mph.

    High: 96 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 79. South wind 5 to 10 mph.

    Low: 79 °F

    Mostly Clear

Detailed Forecast

Today
Sunny and hot, with a high near 97. Heat index values as high as 111. West wind around 5 mph becoming south in the afternoon.
Tonight
Mostly clear, with a low around 79. South wind 5 to 10 mph.
Saturday
Sunny and hot, with a high near 98. Heat index values as high as 111. West wind around 5 mph.
Saturday Night
Mostly clear, with a low around 80. Southwest wind around 5 mph.
Sunday
Sunny and hot, with a high near 98. West wind around 5 mph becoming south in the afternoon.
Sunday Night
Mostly clear, with a low around 80. South wind around 5 mph.
Monday
Sunny, with a high near 96. Southwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 79. South wind 5 to 10 mph.
Tuesday
Sunny, with a high near 94. Southwest wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 79.
Wednesday
Sunny, with a high near 94.
Wednesday Night
Mostly clear, with a low around 79.
Thursday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port Arthur TX
 29.9°N 93.92°W
Last Update:
9:46 am CDT Aug 21, 2026
Forecast Valid:
11am CDT Aug 21, 2026-6pm CDT Aug 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation