



Heavy Rain From the Central Plains to the Mid-Atlantic; Heat Wave Begins This Weekend
Strong to severe thunderstorms and heavy rain will impact portions of the central Plains into the Upper Midwest and the Mid-Atlantic through the weekend. A stretch of unusually hot and humid weather is expected across portions of the central U.S. and the Southeast beginning this weekend and continuing through next week. The heat may reach dangerous levels, particularly mid to late next week. Read More >

Last Update: 1243 PM CDT Fri Jul 18 2025
For More Weather Information:
19NM SE Grand Isle LA
Marine Zone Forecast
This Afternoon
Southwest winds around 10 knots. Seas around 2 feet. Wave detail: southwest 2 feet at 4 seconds and southeast 1 foot at 5 seconds. A chance of showers and thunderstorms early, then a slight chance of showers and thunderstorms late.
Tonight
South winds 5 to 10 knots. Seas 1 to 2 feet. Wave detail: south 2 feet at 5 seconds. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight.
Saturday
South winds 5 to 10 knots. Seas 1 to 2 feet in the morning, then 1 foot or less. Wave detail: south 1 foot at 5 seconds, becoming south 1 foot at 4 seconds. A chance of showers. Thunderstorms likely, mainly in the morning.
Saturday Night
South winds around 5 knots. Seas 1 foot or less. Wave detail: south 1 foot at 5 seconds. A slight chance of showers and thunderstorms after midnight.
Sunday
South winds around 5 knots. Seas 1 to 2 feet. Wave detail: southeast 2 feet at 6 seconds. A chance of showers and thunderstorms.
Sunday Night
South winds around 5 knots. Seas 1 to 2 feet. Wave detail: southeast 2 feet at 6 seconds. A slight chance of showers and thunderstorms after midnight.
Monday
Southwest winds around 5 knots. Seas 1 to 2 feet. Wave detail: southeast 2 feet at 6 seconds. A chance of showers and thunderstorms, mainly in the morning.
Monday Night
Southwest winds around 5 knots. Seas 1 to 2 feet. Wave detail: southeast 2 feet at 6 seconds and southwest 1 foot at 3 seconds. A slight chance of showers and thunderstorms after midnight.
Tuesday
West winds around 5 knots. Seas 1 to 2 feet in the morning, then 1 foot or less. Wave detail: south 1 foot at 5 seconds. A chance of showers and thunderstorms, mainly in the morning.
Tuesday Night
West winds around 5 knots. Seas 1 foot or less. Wave detail: south 1 foot at 5 seconds. A chance of showers and thunderstorms after midnight.
winds and seas higher in and near thunderstorms.
winds and seas higher in and near thunderstorms.
Winds and seas higher in and near thunderstorms.
Additional Forecasts and Information
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