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

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Lafayette, Lafayette Regional Airport (KLFT)

Lat: 30.2°NLon: 91.99°WElev: 39ft.

Fair

78°F

26°C

Humidity 90%
Wind Speed E 3 mph
Barometer 29.95 in (1014.1 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 3 Oct 9:53 pm CDT
Extended Forecast for

Grand Coteau LA

  • Tonight

    Tonight: A chance of showers and thunderstorms. Cloudy, with a low around 71. Northeast wind around 5 mph. Chance of precipitation is 40%.

    Low: 71 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 82. Northeast wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 82 °F

    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 1am. Mostly cloudy, with a low around 69. North wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    Low: 69 °F

    Chance
    Showers

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny through mid morning, then becoming mostly cloudy, with a high near 84. Northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 84 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 66. North wind around 5 mph.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 86. North wind around 10 mph.

    High: 86 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 66. Calm wind becoming northeast around 5 mph after midnight.

    Low: 66 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 86. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 86 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 63. Northeast wind around 5 mph.

    Low: 63 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers and thunderstorms. Cloudy, with a low around 71. Northeast wind around 5 mph. Chance of precipitation is 40%.
Sunday
Showers and possibly a thunderstorm. High near 82. Northeast wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 1am. Mostly cloudy, with a low around 69. North wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny through mid morning, then becoming mostly cloudy, with a high near 84. Northeast wind around 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 66. North wind around 5 mph.
Tuesday
Mostly sunny, with a high near 86. North wind around 10 mph.
Tuesday Night
Partly cloudy, with a low around 66. Calm wind becoming northeast around 5 mph after midnight.
Wednesday
Mostly sunny, with a high near 86. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 63. Northeast wind around 5 mph.
Thursday
Sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 63.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Coteau LA
 30.43°N 92.05°W
Last Update:
7:46 pm CDT Oct 3, 2026
Forecast Valid:
10pm CDT Oct 3, 2026-6pm CDT Oct 10, 2026
 
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