Tracking Eastern U.S. Storm; Unsettled in the Northwest

A storm system crossing the Mississippi Valley will bring gusty winds with a threat for isolated severe thunderstorms today before shifting through the East Coast on Thanksgiving. Late this weekend into early next week, heavy rain and thunderstorms are possible from the western Gulf of Mexico to coastal New England. Unsettled weather will continue for one more day in the Northwest. Read More >

Current conditions at

Galliano, South Lafourche Airport (KGAO)

Lat: 29.44°NLon: 90.26°WElev: 0ft.

Mostly Cloudy

80°F

27°C

Humidity 73%
Wind Speed S 16 G 23 mph
Barometer 30.07 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 25 Nov 11:15 am CST
Extended Forecast for

13 Miles WSW Grand Isle LA

  • Today

    Today: A 40 percent chance of showers, mainly after noon.  Partly sunny, with a high near 79. South wind 10 to 15 mph.

    Chance
    Showers

    High: 79 °F

  • Tonight

    Tonight: A 20 percent chance of showers before midnight.  Widespread fog, mainly after 5am.  Otherwise, mostly cloudy, with a low around 67. Calm wind.

    Slight Chance
    Showers then
    Fog

    Low: 67 °F

  • Thanksgiving
    Day

    Thanksgiving Day: Areas of fog before 9am.  Otherwise, partly sunny, with a high near 77. Calm wind becoming east around 5 mph in the afternoon.

    Areas Fog
    then Partly
    Sunny

    High: 77 °F

  • Thursday
    Night

    Thursday Night: Patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 66. Calm wind.

    Patchy Fog

    Low: 66 °F

  • Friday

    Friday: A 20 percent chance of showers after noon.  Areas of fog before 9am.  Otherwise, partly sunny, with a high near 77. Light southeast wind becoming south 5 to 10 mph in the morning.

    Areas Fog
    then Slight
    Chance
    Showers

    High: 77 °F

  • Friday
    Night

    Friday Night: A 30 percent chance of showers, mainly after midnight.  Patchy fog between 9pm and 4am.  Otherwise, cloudy, with a low around 62. Calm wind.

    Chance
    Showers and
    Patchy Fog

    Low: 62 °F

  • Saturday

    Saturday: A 50 percent chance of showers.  Cloudy, with a high near 71. Northeast wind 5 to 10 mph.

    Chance
    Showers

    High: 71 °F

  • Saturday
    Night

    Saturday Night: A chance of showers, with thunderstorms also possible after midnight.  Cloudy, with a low around 61. Northeast wind around 10 mph becoming southeast after midnight. Winds could gust as high as 20 mph.  Chance of precipitation is 50%.

    Chance
    Showers

    Low: 61 °F

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon.  Mostly cloudy, with a high near 71. South wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.

    Showers
    Likely

    High: 71 °F

Detailed Forecast

Today
A 40 percent chance of showers, mainly after noon. Partly sunny, with a high near 79. South wind 10 to 15 mph.
Tonight
A 20 percent chance of showers before midnight. Widespread fog, mainly after 5am. Otherwise, mostly cloudy, with a low around 67. Calm wind.
Thanksgiving Day
Areas of fog before 9am. Otherwise, partly sunny, with a high near 77. Calm wind becoming east around 5 mph in the afternoon.
Thursday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 66. Calm wind.
Friday
A 20 percent chance of showers after noon. Areas of fog before 9am. Otherwise, partly sunny, with a high near 77. Light southeast wind becoming south 5 to 10 mph in the morning.
Friday Night
A 30 percent chance of showers, mainly after midnight. Patchy fog between 9pm and 4am. Otherwise, cloudy, with a low around 62. Calm wind.
Saturday
A 50 percent chance of showers. Cloudy, with a high near 71. Northeast wind 5 to 10 mph.
Saturday Night
A chance of showers, with thunderstorms also possible after midnight. Cloudy, with a low around 61. Northeast wind around 10 mph becoming southeast after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 50%.
Sunday
Showers likely and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 71. South wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
A chance of showers, mainly before midnight. Mostly cloudy, with a low around 46. Breezy, with a northwest wind 15 to 20 mph.
Monday
Mostly sunny, with a high near 58. Breezy, with a northwest wind around 20 mph.
Monday Night
Mostly clear, with a low around 42. Breezy, with a north wind 15 to 20 mph.
Tuesday
Sunny, with a high near 60. Northwest wind 10 to 15 mph.
Click Map For Forecast
Point Forecast:
13 Miles WSW Grand Isle LA
 29.15°N 90.17°W
11:16 am CST Nov 25, 2020
11am CST Nov 25, 2020-6pm CST Dec 1, 2020
 
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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