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

Beaumont/Port Arthur Southeast Texas Regional Airport (KBPT)

Lat: 29.95°NLon: 94.03°WElev: 13ft.

Fair

86°F

30°C

Humidity 72%
Wind Speed E 12 mph
Barometer 29.90 in (1012.6 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 29 Aug 6:53 pm CDT
Extended Forecast for

Sour Lake TX

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 73. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 73 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms before 11am, then showers likely and possibly a thunderstorm between 11am and 1pm, then showers and thunderstorms likely after 1pm. Partly sunny, with a high near 90. Heat index values as high as 98. Calm wind becoming northwest around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Showers
    Likely then
    T-storms
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 73. Calm wind. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms before 11am, then a chance of showers between 11am and noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 88. Calm wind becoming northeast around 5 mph. Chance of precipitation is 50%.

    High: 88 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Chance
    T-storms then
    Chance
    Showers

  • Labor Day

    Labor Day: A chance of showers and thunderstorms before 1pm, then showers likely between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a high near 87. Calm wind becoming northeast around 5 mph. Chance of precipitation is 60%.

    High: 87 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Calm wind becoming north around 5 mph.

    High: 92 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 70. Calm wind.

    Low: 70 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 73. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers and thunderstorms before 11am, then showers likely and possibly a thunderstorm between 11am and 1pm, then showers and thunderstorms likely after 1pm. Partly sunny, with a high near 90. Heat index values as high as 98. Calm wind becoming northwest around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 73. Calm wind. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms before 11am, then a chance of showers between 11am and noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 88. Calm wind becoming northeast around 5 mph. Chance of precipitation is 50%.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Calm wind.
Labor Day
A chance of showers and thunderstorms before 1pm, then showers likely between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a high near 87. Calm wind becoming northeast around 5 mph. Chance of precipitation is 60%.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 70. Calm wind.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Calm wind becoming north around 5 mph.
Tuesday Night
Mostly clear, with a low around 70. Calm wind.
Wednesday
Sunny, with a high near 91.
Wednesday Night
Mostly clear, with a low around 68.
Thursday
Sunny, with a high near 92.
Thursday Night
Partly cloudy, with a low around 68.
Friday
Sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
Sour Lake TX
 30.13°N 94.42°W
Last Update:
6:56 pm CDT Aug 29, 2025
Forecast Valid:
7pm CDT Aug 29, 2025-6pm CDT Sep 5, 2025
 
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