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

Louisiana Regional Airport (KREG)

Lat: 30.17°NLon: 90.94°WElev: 14ft.

Fair

89°F

32°C

Humidity 66%
Wind Speed NW 3 mph
Barometer 30.13 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 16 Aug 10:15 am CDT
Extended Forecast for

Napoleonville LA

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

    NOW until 7:00pm Sat

    Heat Advisory

  • Today

    High: 94 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 76. Calm wind.

    Low: 76 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms, mainly after 10am. Mostly sunny, with a high near 93. Heat index values as high as 107. Calm wind becoming north around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 93 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 75. Calm wind.

    Low: 75 °F

    Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 93 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms before 10pm. Mostly clear, with a low around 75. Calm wind.

    Low: 75 °F

    Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93. Calm wind becoming northeast around 5 mph in the morning.

    High: 93 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 75. Calm wind.

    Low: 75 °F

    Mostly Clear

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 94. Heat index values as high as 106. Calm wind becoming north around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 76. Calm wind.
Sunday
A 50 percent chance of showers and thunderstorms, mainly after 10am. Mostly sunny, with a high near 93. Heat index values as high as 107. Calm wind becoming north around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 30 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 75. Calm wind.
Monday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93. Calm wind becoming northeast around 5 mph in the afternoon.
Monday Night
A 30 percent chance of showers and thunderstorms before 10pm. Mostly clear, with a low around 75. Calm wind.
Tuesday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 93. Calm wind becoming northeast around 5 mph in the morning.
Tuesday Night
Mostly clear, with a low around 75. Calm wind.
Wednesday
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 91. Calm wind becoming east around 5 mph.
Wednesday Night
A slight chance of showers and thunderstorms before 1am. Mostly clear, with a low around 75. Calm wind.
Thursday
Showers and thunderstorms likely. Mostly sunny, with a high near 92. Calm wind becoming south around 5 mph.
Thursday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 75. Calm wind.
Friday
Showers and thunderstorms likely. Mostly sunny, with a high near 92. Calm wind becoming south around 5 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Napoleonville LA
 29.95°N 91.03°W
Last Update:
10:17 am CDT Aug 16, 2025
Forecast Valid:
10am CDT Aug 16, 2025-6pm CDT Aug 22, 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