Excessive Rainfall Possible for the Gulf Coast and Florida; 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 parts of the Gulf Coast into central/northern Florida early this week. Abnormally hot, potentially record-breaking, temperatures will continue for southern California and stretch north toward the Bay Area and Central Valley this week. Read More >

Last Update: 1028 PM EDT Sun Oct 4 2026

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For More Weather Information:

Key West, FL Local Forecast Office

16NM NNW Vaca Cut FL

Marine Zone Forecast


Overnight
East winds near 10 knots. Seas around 1 foot, except 1 to 2 west of the marquesas. Nearshore waters a light chop. A slight chance of showers and thunderstorms.
Monday
Southeast winds 5 to 10 knots, becoming east near 5 knots. Seas around 1 foot, subsiding to 1 foot or less. Nearshore waters smooth to a light chop, becoming smooth. A slight chance of showers and thunderstorms.
Monday Night
East winds near 5 knots, becoming southeast. Seas 1 foot or less. Nearshore waters smooth. A slight chance of showers and thunderstorms.
Tuesday
South winds near 5 knots, becoming variable. Seas 1 foot or less. Nearshore waters smooth. A slight chance of showers and thunderstorms.
Tuesday Night
Variable near 5 knots, becoming south to southwest. Seas 1 foot or less. Nearshore waters smooth. A slight chance of showers and thunderstorms.
Wednesday
South winds near 5 knots, becoming southwest 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth, becoming smooth to a light chop. A chance of showers with a slight chance of thunderstorms.
Wednesday Night
Southwest to west winds near 5 knots, becoming south. Seas 1 foot or less. Nearshore waters smooth. A chance of showers and thunderstorms.
Thursday
South winds near 5 knots, becoming southeast. Seas 1 foot or less. Nearshore waters smooth. A chance of showers and thunderstorms.
Thursday Night
Southeast winds near 5 knots, increasing to 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth, becoming smooth to a light chop. A slight chance of showers and thunderstorms.
Friday
Southeast winds 5 to 10 knots, increasing to near 10 knots. Seas 1 foot or less, building to around 1 foot. Nearshore waters smooth to a light chop, becoming a light chop. A slight chance of showers and thunderstorms.
Friday Night
East to southeast winds near 10 knots, increasing to 10 to 15 knots. Seas around 1 foot, building to 1 to 2 feet. nearshore waters a light chop, becoming a light to moderate chop. A slight chance of showers and thunderstorms.



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1028 PM EDT Sun Oct 4 2026
 
 

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