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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Beaumont/Port Arthur Southeast Texas Regional Airport (KBPT)

Lat: 29.95°NLon: 94.03°WElev: 13ft.

Fair

80°F

27°C

Humidity 94%
Wind Speed Calm
Barometer 29.98 in (1015.2 mb)
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 27 Aug 11:53 pm CDT
Extended Forecast for

Port Arthur TX

  • Tonight

    Tonight: A chance of showers, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 77. Southwest wind around 5 mph becoming calm. Chance of precipitation is 40%.

    Low: 77 °F

    Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms after 5pm. Sunny, with a high near 93. Heat index values as high as 106. North wind around 5 mph becoming east in the afternoon. Chance of precipitation is 30%.

    High: 93 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 77. South wind around 5 mph becoming calm in the evening.

    Low: 77 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 94. Heat index values as high as 103. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 94 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 78. Southeast wind around 5 mph becoming calm in the evening.

    Low: 78 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 93. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.

    High: 93 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 79. South wind around 5 mph becoming calm after midnight.

    Low: 79 °F

    Mostly Clear

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. Light south wind increasing to 5 to 10 mph in the afternoon.

    High: 91 °F

    Chance
    T-storms

  • Monday Night

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

    Low: 79 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 77. Southwest wind around 5 mph becoming calm. Chance of precipitation is 40%.
Friday
A chance of showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms after 5pm. Sunny, with a high near 93. Heat index values as high as 106. North wind around 5 mph becoming east in the afternoon. Chance of precipitation is 30%.
Friday Night
Mostly clear, with a low around 77. South wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 94. Heat index values as high as 103. Calm wind becoming northeast around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 78. Southeast wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 93. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 79. South wind around 5 mph becoming calm after midnight.
Monday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. Light south wind increasing to 5 to 10 mph in the afternoon.
Monday Night
Mostly clear, with a low around 79. South wind 5 to 10 mph becoming light after midnight.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Tuesday Night
Partly cloudy, with a low around 78.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Wednesday Night
Mostly clear, with a low around 78.
Thursday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port Arthur TX
 29.9°N 93.92°W
Last Update:
10:46 pm CDT Aug 27, 2026
Forecast Valid:
11pm CDT Aug 27, 2026-6pm CDT Sep 3, 2026
 
Forecast Discussion
 
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Additional Resources

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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