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

Severe Weather and Heavy Rainfall from the Midwest to the Ohio Valley; Mid-Summer Heat Continues

Severe thunderstorm and heavy rainfall threats will persist from the Midwest to Lower Great Lakes through Monday, shifting into the Ohio Valley and Central Appalachians Monday evening into Tuesday. Mid-summer heat will continue across much of the CONUS this week, with record highs possible well into the 100s across the south-central High Plains. Read More >

Current conditions at

Lafayette, Lafayette Regional Airport (KLFT)

Lat: 30.2°NLon: 91.99°WElev: 39ft.

Fair

78°F

26°C

Humidity 93%
Wind Speed Calm
Barometer 30.06 in (1017.8 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 10 Aug 12:53 am CDT
Extended Forecast for

Grand Coteau LA

  • Overnight

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

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly after 11am. Increasing clouds, with a high near 91. Heat index values as high as 105. Calm wind becoming south around 5 mph in the afternoon.

    High: 91 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. South wind around 5 mph becoming calm in the evening.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 92. Heat index values as high as 107. Calm wind becoming south around 5 mph in the afternoon.

    High: 92 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 76. South wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 93. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 93 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76. South wind around 5 mph becoming calm after midnight.

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 95. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 95 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 75. South wind 5 to 10 mph becoming light southwest after midnight.

    Low: 75 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 75. Calm wind.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 11am. Increasing clouds, with a high near 91. Heat index values as high as 105. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 75. South wind around 5 mph becoming calm in the evening.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 92. Heat index values as high as 107. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 76. South wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 93. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 76. South wind around 5 mph becoming calm after midnight.
Thursday
Sunny, with a high near 95. Light and variable wind becoming south 5 to 10 mph in the morning.
Thursday Night
Mostly clear, with a low around 75. South wind 5 to 10 mph becoming light southwest after midnight.
Friday
Sunny, with a high near 95.
Friday Night
Mostly clear, with a low around 75.
Saturday
Sunny, with a high near 96.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Sunny, with a high near 96.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Coteau LA
 30.43°N 92.05°W
Last Update:
12:45 am CDT Aug 10, 2026
Forecast Valid:
1am CDT Aug 10, 2026-6pm CDT Aug 16, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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