Severe Weather and Flash Flooding Potential for the Center of the Nation

An upper level trough coinciding with surface frontal boundaries will focus showers and thunderstorms from the Great Lakes region into the Ohio and Tennessee Valley's, central and southern Plains. Instances of flash flooding, damaging winds and large hail are possible. Meanwhile, increasing waves and rip currents for portions of the eastern seaboard this week as tropical Atlantic is active. Read More >

Current conditions at

Galliano, South Lafourche Airport (KGAO)

Lat: 29.44°NLon: 90.26°WElev: 0ft.

Mostly Cloudy

84°F

29°C

Humidity 59%
Wind Speed S 16 mph
Barometer 30.00 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 22 Sep 12:55 pm CDT
Extended Forecast for

Galliano LA

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms before 4pm, then a slight chance of showers and thunderstorms after 5pm.  Mostly sunny, with a high near 88. Southeast wind around 10 mph.  Chance of precipitation is 30%.

    High: 88 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm.  Mostly clear, with a low around 73. Southeast wind around 5 mph becoming calm  in the evening.

    Low: 73 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 89. Light southeast wind becoming south 5 to 10 mph in the morning.

    High: 89 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 74. South wind around 5 mph becoming calm  in the evening.

    Low: 74 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 10am.  Mostly sunny, with a high near 89. Light south wind increasing to 5 to 10 mph in the morning.  Chance of precipitation is 40%.

    High: 89 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am.  Mostly cloudy, with a low around 73. Southwest wind around 5 mph.

    Low: 73 °F

    Chance
    T-storms

  • Thursday

    Thursday: Showers and possibly a thunderstorm.  High near 86. West wind 5 to 10 mph.  Chance of precipitation is 80%.

    High: 86 °F

    Showers
    Likely then
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am.  Mostly cloudy, with a low around 69. West wind around 5 mph.

    Low: 69 °F

    Chance
    T-storms

  • Friday

    Friday: A slight chance of showers and thunderstorms.  Mostly sunny, with a high near 87. North wind around 5 mph.

    High: 87 °F

    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms before 4pm, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 88. Southeast wind around 10 mph. Chance of precipitation is 30%.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 73. Southeast wind around 5 mph becoming calm in the evening.
Tuesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 89. Light southeast wind becoming south 5 to 10 mph in the morning.
Tuesday Night
Mostly clear, with a low around 74. South wind around 5 mph becoming calm in the evening.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 89. Light south wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 40%.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 73. Southwest wind around 5 mph.
Thursday
Showers and possibly a thunderstorm. High near 86. West wind 5 to 10 mph. Chance of precipitation is 80%.
Thursday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 69. West wind around 5 mph.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 87. North wind around 5 mph.
Friday Night
Mostly clear, with a low around 68. Northwest wind around 5 mph becoming calm.
Saturday
Sunny, with a high near 88. North wind around 5 mph.
Saturday Night
Mostly clear, with a low around 67. Northeast wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 88. Northeast wind around 5 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Galliano LA
 29.43°N 90.29°W
12:26 pm CDT Sep 22, 2025
1pm CDT Sep 22, 2025-6pm CDT Sep 28, 2025
 
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Additional Resources

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