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.

Overcast

77°F

25°C

Humidity 90%
Wind Speed W 5 mph
Barometer 30.03 in (1016.7 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 20 May 7:53 am CDT
Extended Forecast for

4 Miles NW Port Allen LA

  • Today

    Today: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. High near 85. Southeast wind around 5 mph becoming southwest in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 85 °F

    Chance
    T-storms then
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 72. South wind around 5 mph becoming calm. Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. High near 84. Calm wind becoming south around 5 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 84 °F

    Chance
    T-storms then
    T-storms

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm, mainly before 1am, then a chance of showers and thunderstorms after 1am. Low around 72. South wind around 5 mph. Chance of precipitation is 80%.

    Low: 72 °F

    T-storms then
    Showers
    Likely

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 83. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 90%.

    High: 83 °F

    Showers
    Likely then
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. South wind around 5 mph becoming southeast in the evening.

    Low: 73 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm. High near 85. South wind around 5 mph. Chance of precipitation is 90%.

    High: 85 °F

    Showers
    Likely then
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Southeast wind around 5 mph. Chance of precipitation is 50%.

    Low: 73 °F

    Chance
    T-storms

  • Sunday

    Sunday: Showers and possibly a thunderstorm. Mostly cloudy, with a high near 83. Southeast wind 5 to 10 mph.

    High: 83 °F

    Showers
    Likely then
    T-storms

Detailed Forecast

Today
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. High near 85. Southeast wind around 5 mph becoming southwest in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 72. South wind around 5 mph becoming calm. Chance of precipitation is 30%.
Thursday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. High near 84. Calm wind becoming south around 5 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers and possibly a thunderstorm, mainly before 1am, then a chance of showers and thunderstorms after 1am. Low around 72. South wind around 5 mph. Chance of precipitation is 80%.
Friday
Showers and possibly a thunderstorm. High near 83. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 90%.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. South wind around 5 mph becoming southeast in the evening.
Saturday
Showers and possibly a thunderstorm. High near 85. South wind around 5 mph. Chance of precipitation is 90%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Southeast wind around 5 mph. Chance of precipitation is 50%.
Sunday
Showers and possibly a thunderstorm. Mostly cloudy, with a high near 83. Southeast wind 5 to 10 mph.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 73. Southeast wind around 5 mph.
Memorial Day
Showers and possibly a thunderstorm. Mostly cloudy, with a high near 83. Southeast wind around 5 mph.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Southeast wind around 5 mph.
Tuesday
Showers and possibly a thunderstorm. Mostly cloudy, with a high near 83. Southeast wind around 5 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Port Allen LA
 30.5°N 91.25°W
Last Update:
4:20 am CDT May 20, 2026
Forecast Valid:
8am CDT May 20, 2026-6pm CDT May 26, 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