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

N/A

Humidity NA
Wind Speed Calm
Barometer 29.90 in
Dewpoint N/A
Visibility 10.00 mi
Last update 5 Sep 9:56 pm CDT
Extended Forecast for

4 Miles E Belle River LA

  • Tonight

    Tonight: Partly cloudy, with a steady temperature around 80. Calm wind.

    Low: 80 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 90. Heat index values as high as 106. Calm wind.

    High: 90 °F

    Sunny then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 78. Calm wind.

    Low: 78 °F

    Mostly Clear

  • Labor Day

    Labor Day: Showers and thunderstorms likely between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Sunny, with a high near 92. Heat index values as high as 108. Calm wind becoming southwest around 5 mph. Chance of precipitation is 60%.

    High: 92 °F

    Sunny then
    T-storms
    Likely

  • Monday Night

    Monday Night: A chance of thunderstorms before 7pm. Partly cloudy, with a low around 78. Calm wind. Chance of precipitation is 30%.

    Low: 78 °F

    Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 90. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 80%.

    High: 90 °F

    Chance
    T-storms then
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 78. Calm wind.

    Low: 78 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 89. Calm wind. Chance of precipitation is 70%.

    High: 89 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 77. Calm wind.

    Low: 77 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a steady temperature around 80. Calm wind.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 90. Heat index values as high as 106. Calm wind.
Sunday Night
Mostly clear, with a low around 78. Calm wind.
Labor Day
Showers and thunderstorms likely between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Sunny, with a high near 92. Heat index values as high as 108. Calm wind becoming southwest around 5 mph. Chance of precipitation is 60%.
Monday Night
A chance of thunderstorms before 7pm. Partly cloudy, with a low around 78. Calm wind. Chance of precipitation is 30%.
Tuesday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 90. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 80%.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 78. Calm wind.
Wednesday
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 89. Calm wind. Chance of precipitation is 70%.
Wednesday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 77. Calm wind.
Thursday
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 89. Calm wind.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 77. Calm wind.
Friday
Showers and thunderstorms likely. Mostly sunny, with a high near 90. Calm wind.
Friday Night
Partly cloudy, with a low around 78. Calm wind.
Saturday
Showers and thunderstorms likely. Mostly sunny, with a high near 90. Calm wind becoming southwest around 5 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Belle River LA
 29.88°N 91.14°W
Last Update:
6:14 pm CDT Sep 5, 2026
Forecast Valid:
10pm CDT Sep 5, 2026-6pm CDT Sep 12, 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