Severe Weather and Heavy Rain from the Great Lakes to the Mid-Atlantic; Heat Persists in the East

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected from the Upper Ohio Valley into the southern Mid-Atlantic today and portions of the central Appalachians and Carolinas on Saturday. Monsoonal moisture will bring a flash flooding threat to the Desert Southwest. Sweltering heat persists from the Plains to the southern Mid-Atlantic through tonight. Read More >

Hazardous Weather Conditions

Last Update: 432 AM EDT Fri Sep 4 2026

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Key West, FL Local Forecast Office

7NM SE Molasses Reef Light FL

Marine Zone Forecast


Today
Southeast winds 5 to 10 knots. Seas around 1 foot. Wave detail: east to southeast 1 foot at 3 seconds. A chance of showers and thunderstorms.
Tonight
East to southeast winds near 10 knots. Seas 1 to 2 feet. Wave detail: east 2 feet at 3 seconds. A chance of showers and thunderstorms.
Saturday
East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. Wave detail: east to southeast 2 feet at 4 seconds. A chance of showers and thunderstorms.
Saturday Night
East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms.
Sunday
East to southeast winds near 5 knots. Seas around 1 foot. A chance of showers and thunderstorms.
Sunday Night
Southeast to south winds 5 to 10 knots. Seas around 1 foot. A chance of showers and thunderstorms.
Monday
South winds near 5 knots. Seas around 1 foot. A chance of showers and thunderstorms.
Monday Night
Southeast winds near 5 knots. Seas around 1 foot. A chance of showers and thunderstorms.
Tuesday
East to southeast winds near 5 knots. Seas around 1 foot. A slight chance of showers and thunderstorms.
Tuesday Night
East winds 5 to 10 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms.



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432 AM EDT Fri Sep 4 2026
 
 

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