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

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Hazardous Weather Conditions

Current conditions at

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

Lat: 30.54°NLon: 91.15°WElev: 69ft.

Fog

73°F

23°C

Humidity 100%
Wind Speed Calm
Barometer 30.09 in (1019.0 mb)
Dewpoint 73°F (23°C)
Visibility 0.25 mi
Last update 16 Aug 1:53 am CDT
Extended Forecast for

Grosse Tete LA

Heat Advisory August 16, 10:00am until August 16, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Partly cloudy, with a low around 75. Calm wind.

    Low: 75 °F

    Partly Cloudy

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly between 3pm and 5pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 93. Heat index values as high as 105. Calm wind becoming north around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 93 °F

    Patchy Fog
    then T-storms
    Likely

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 77. Calm wind.

    Low: 77 °F

    Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 94. Heat index values as high as 106. North wind around 5 mph.

    High: 94 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 76. North wind around 5 mph becoming calm.

    Low: 76 °F

    Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly after 4pm. Sunny, with a high near 94. Calm wind becoming northeast around 5 mph in the morning.

    High: 94 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly clear, with a low around 75. Northeast wind around 5 mph becoming calm in the evening.

    Low: 75 °F

    Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Sunny, with a high near 94. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 94 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 75. South wind around 5 mph becoming calm.

    Low: 75 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 75. Calm wind.
Saturday
Showers and thunderstorms likely, mainly between 3pm and 5pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 93. Heat index values as high as 105. Calm wind becoming north around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 77. Calm wind.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 94. Heat index values as high as 106. North wind around 5 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 76. North wind around 5 mph becoming calm.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 4pm. Sunny, with a high near 94. Calm wind becoming northeast around 5 mph in the morning.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly clear, with a low around 75. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Sunny, with a high near 94. Calm wind becoming northeast around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 75. South wind around 5 mph becoming calm.
Wednesday
Showers and thunderstorms likely, mainly after 1pm. Sunny, with a high near 93. Calm wind becoming northeast around 5 mph in the afternoon.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 75. Southwest wind around 5 mph becoming calm in the evening.
Thursday
Showers and thunderstorms likely. Mostly sunny, with a high near 92. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 74. South wind around 5 mph becoming calm in the evening.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 93. Calm wind becoming south around 5 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grosse Tete LA
 30.41°N 91.44°W
Last Update:
12:26 am CDT Aug 16, 2025
Forecast Valid:
2am CDT Aug 16, 2025-6pm CDT Aug 22, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

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Chance of Precipitation