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

81°F

27°C

Humidity 94%
Wind Speed Calm
Barometer 30.05 in (1017.7 mb)
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 14 Jul 7:56 pm CDT
Extended Forecast for

Bayou Vista LA

  • Tonight

    Tonight: Mostly clear, with a low around 76. Calm wind.

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly between 1pm and 4pm. Mostly sunny, with a high near 93. Heat index values as high as 103. Calm wind becoming south around 5 mph in the afternoon.

    High: 93 °F

    Chance
    T-storms

  • Tuesday Night

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

    Low: 77 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93. Heat index values as high as 103. Calm wind becoming northwest around 5 mph.

    High: 93 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 76. Southwest wind around 5 mph becoming calm. Chance of precipitation is 40%.

    Low: 76 °F

    Chance
    T-storms

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm, then showers and thunderstorms after 1pm. High near 89. Calm wind becoming north around 5 mph in the morning. Chance of precipitation is 90%.

    High: 89 °F

    Showers
    Likely then
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 75. West wind around 5 mph becoming calm. Chance of precipitation is 60%.

    Low: 75 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms after 1pm. High near 87. Calm wind becoming southwest around 5 mph in the morning. Chance of precipitation is 90%.

    High: 87 °F

    Showers then
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77. Southwest wind around 5 mph becoming calm in the evening.

    Low: 77 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 76. Calm wind.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly between 1pm and 4pm. Mostly sunny, with a high near 93. Heat index values as high as 103. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 77. West wind around 5 mph becoming calm in the evening.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93. Heat index values as high as 103. Calm wind becoming northwest around 5 mph.
Wednesday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 76. Southwest wind around 5 mph becoming calm. Chance of precipitation is 40%.
Thursday
Showers likely and possibly a thunderstorm, then showers and thunderstorms after 1pm. High near 89. Calm wind becoming north around 5 mph in the morning. Chance of precipitation is 90%.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 75. West wind around 5 mph becoming calm. Chance of precipitation is 60%.
Friday
Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms after 1pm. High near 87. Calm wind becoming southwest around 5 mph in the morning. Chance of precipitation is 90%.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77. Southwest wind around 5 mph becoming calm in the evening.
Saturday
Showers likely and possibly a thunderstorm, then showers and thunderstorms after 1pm. High near 89. Chance of precipitation is 80%.
Saturday Night
Partly cloudy, with a low around 77.
Sunday
Showers and thunderstorms likely. Partly sunny, with a high near 90. Chance of precipitation is 60%.
Sunday Night
Partly cloudy, with a low around 77.
Monday
Showers and thunderstorms likely. Mostly sunny, with a high near 91. Chance of precipitation is 60%.
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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:
6:45 pm CDT Jul 14, 2025
Forecast Valid:
8pm CDT Jul 14, 2025-6pm CDT Jul 21, 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