Heavy Rainfall in South Texas; Below Normal Temperatures for Much of the East

Heavy rainfall is expected to continue along the southern Texas coast and Rio Grande Valley through Monday morning. A flash-flood watch is effect for this area. Temperatures from the Great Lakes to the southern Plains and through much of the eastern U.S. are expected to be below-normal, with some areas well below-normal. Read More >

Current conditions at

Galliano, South Lafourche Airport (KGAO)

Lat: 29.44°NLon: 90.26°WElev: 0ft.

Overcast

74°F

23°C

Humidity 86%
Wind Speed N 14 G 18 mph
Barometer 30.09 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 20 Oct 10:35 pm CDT
Extended Forecast for

Grand Isle LA

  • Tonight

    Tonight: A 40 percent chance of showers before 1am.  Mostly cloudy, with a low around 71. Breezy, with a northeast wind 15 to 25 mph.

    Chance
    Showers and
    Breezy

    Low: 71 °F

  • Sunday

    Sunday: Mostly sunny, with a high near 72. Breezy, with a northeast wind 20 to 25 mph, with gusts as high as 35 mph.

    Mostly Sunny
    and Breezy

    High: 72 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 67. Breezy, with a northeast wind 15 to 20 mph.

    Partly Cloudy
    and Breezy

    Low: 67 °F

  • Monday

    Monday: Partly sunny, with a high near 78. East wind 10 to 15 mph.

    Partly Sunny

    High: 78 °F

  • Monday
    Night

    Monday Night: Showers likely, mainly after 1am.  Cloudy, with a low around 72. Northeast wind around 15 mph.  Chance of precipitation is 60%.

    Showers
    Likely

    Low: 72 °F

  • Tuesday

    Tuesday: Showers likely.  Cloudy, with a high near 78. Breezy, with a northeast wind 15 to 20 mph.  Chance of precipitation is 70%.

    Showers
    Likely and
    Breezy

    High: 78 °F

  • Tuesday
    Night

    Tuesday Night: A 30 percent chance of showers.  Cloudy, with a low around 75. Breezy, with an east wind around 20 mph.

    Chance
    Showers and
    Breezy

    Low: 75 °F

  • Wednesday

    Wednesday: A 50 percent chance of showers.  Cloudy, with a high near 77. Breezy, with an east wind around 20 mph.

    Chance
    Showers and
    Breezy

    High: 77 °F

  • Wednesday
    Night

    Wednesday Night: Showers likely.  Cloudy, with a low around 75. Breezy, with an east wind 15 to 20 mph.

    Showers
    Likely and
    Breezy

    Low: 75 °F

Detailed Forecast

Tonight
A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 71. Breezy, with a northeast wind 15 to 25 mph.
Sunday
Mostly sunny, with a high near 72. Breezy, with a northeast wind 20 to 25 mph, with gusts as high as 35 mph.
Sunday Night
Partly cloudy, with a low around 67. Breezy, with a northeast wind 15 to 20 mph.
Monday
Partly sunny, with a high near 78. East wind 10 to 15 mph.
Monday Night
Showers likely, mainly after 1am. Cloudy, with a low around 72. Northeast wind around 15 mph. Chance of precipitation is 60%.
Tuesday
Showers likely. Cloudy, with a high near 78. Breezy, with a northeast wind 15 to 20 mph. Chance of precipitation is 70%.
Tuesday Night
A 30 percent chance of showers. Cloudy, with a low around 75. Breezy, with an east wind around 20 mph.
Wednesday
A 50 percent chance of showers. Cloudy, with a high near 77. Breezy, with an east wind around 20 mph.
Wednesday Night
Showers likely. Cloudy, with a low around 75. Breezy, with an east wind 15 to 20 mph.
Thursday
A chance of showers. Cloudy, with a high near 76. Northeast wind around 15 mph.
Thursday Night
A chance of showers. Cloudy, with a low around 73. Northeast wind around 15 mph.
Friday
A chance of showers. Cloudy, with a high near 75. North wind around 15 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 70. North wind around 15 mph.
Saturday
Mostly sunny, with a high near 74. North wind 10 to 15 mph.
Click Map For Forecast
Point Forecast:
Grand Isle LA
 29.23°N 89.99°W
10:17 pm CDT Oct 20, 2018
10pm CDT Oct 20, 2018-6pm CDT Oct 27, 2018
 
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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