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

Baton Rouge, Baton Rouge Metropolitan, Ryan Field (KBTR)

Lat: 30.54°NLon: 91.15°WElev: 69ft.

Fair

77°F

25°C

Humidity 85%
Wind Speed NE 5 mph
Barometer 29.89 in (1012.0 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 21 Aug 7:53 am CDT
Extended Forecast for

Port Allen LA

  • Today

    Today: Showers and thunderstorms likely, mainly after 3pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 106. Calm wind becoming north around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 95 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 9pm. Partly cloudy, with a low around 75. Southeast wind around 5 mph becoming calm.

    Low: 75 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A chance of showers, then showers and thunderstorms likely after 10am. Mostly sunny, with a high near 91. Calm wind becoming northeast 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: 91 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 74. Calm wind. Chance of precipitation is 20%.

    Low: 74 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 93. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 40%.

    High: 93 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 73. Northeast wind around 5 mph becoming calm.

    Low: 73 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 96. Calm wind becoming north around 5 mph in the afternoon.

    High: 96 °F

    Sunny then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74. Southwest wind around 5 mph becoming calm in the evening.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 97. North wind around 5 mph becoming northeast in the afternoon.

    High: 97 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Today
Showers and thunderstorms likely, mainly after 3pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 106. Calm wind becoming north around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before 9pm. Partly cloudy, with a low around 75. Southeast wind around 5 mph becoming calm.
Friday
A chance of showers, then showers and thunderstorms likely after 10am. Mostly sunny, with a high near 91. Calm wind becoming northeast 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.
Friday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 74. Calm wind. Chance of precipitation is 20%.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 93. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 73. Northeast wind around 5 mph becoming calm.
Sunday
A 30 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 96. Calm wind becoming north around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 74. Southwest wind around 5 mph becoming calm in the evening.
Monday
A slight chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 97. North wind around 5 mph becoming northeast in the afternoon.
Monday Night
Mostly clear, with a low around 74. South wind around 5 mph becoming calm in the evening.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 94. Calm wind becoming northeast around 5 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 73. East wind around 5 mph becoming calm in the evening.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Northeast wind around 5 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port Allen LA
 30.45°N 91.2°W
Last Update:
6:17 am CDT Aug 21, 2025
Forecast Valid:
8am CDT Aug 21, 2025-6pm CDT Aug 27, 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