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

Patterson Memorial (KPTN)

Lat: 29.72°NLon: 91.33°WElev: 10ft.

Fair

88°F

31°C

Humidity 66%
Wind Speed N 8 mph
Barometer 29.98 in (1015.4 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 3 Aug 12:56 pm CDT
Extended Forecast for

Bayou Vista LA

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 90. Heat index values as high as 98. Northwest wind around 5 mph.

    High: 90 °F

    Chance
    Showers

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 74. Calm wind.

    Low: 74 °F

    Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Increasing clouds, with a high near 92. Heat index values as high as 98. Calm wind becoming north around 5 mph.

    High: 92 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 76. Calm wind. Chance of precipitation is 30%.

    Low: 76 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 91. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 70%.

    High: 91 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 76. Calm wind. Chance of precipitation is 20%.

    Low: 76 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 91. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%.

    High: 91 °F

    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75. Calm wind.

    Low: 75 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 91. Calm wind becoming northwest around 5 mph. Chance of precipitation is 70%.

    High: 91 °F

    T-storms
    Likely

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 90. Heat index values as high as 98. Northwest wind around 5 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 74. Calm wind.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Increasing clouds, with a high near 92. Heat index values as high as 98. Calm wind becoming north around 5 mph.
Monday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 76. Calm wind. Chance of precipitation is 30%.
Tuesday
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 91. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 70%.
Tuesday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 76. Calm wind. Chance of precipitation is 20%.
Wednesday
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 91. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75. Calm wind.
Thursday
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 91. Calm wind becoming northwest around 5 mph. Chance of precipitation is 70%.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 75.
Friday
Showers and thunderstorms likely. Mostly sunny, with a high near 91. Chance of precipitation is 70%.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 75.
Saturday
Showers and thunderstorms likely. Mostly sunny, with a high near 90. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Bayou Vista LA
 29.68°N 91.28°W
Last Update:
12:45 pm CDT Aug 3, 2025
Forecast Valid:
1pm CDT Aug 3, 2025-6pm CDT Aug 9, 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