Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Hazardous Weather Conditions

Last Update: 433 AM EDT Sat Sep 19 2026

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For More Weather Information:

Key West, FL Local Forecast Office

23NM N Smith Shoal Light FL

Marine Zone Forecast


Today
East to southeast winds near 5 knots. Seas 1 foot or less. Wave detail: east 1 foot at 3 seconds. A chance of showers and thunderstorms.
Tonight
East to southeast winds near 5 knots. Seas 1 foot or less. Wave detail: east 1 foot at 2 seconds. A chance of showers and thunderstorms.
Sunday
South winds near 5 knots. Seas 1 foot or less. Wave detail: south 1 foot at 2 seconds. Showers likely with a chance of thunderstorms.
Sunday Night
Southeast to south winds near 5 knots, increasing to around 10 knots. Seas 1 foot or less. Showers likely with a chance of thunderstorms.
Monday
South to southwest winds near 5 knots. Seas 1 foot or less. Showers likely with a chance of thunderstorms.
Monday Night
South winds 5 to 10 knots. Seas around 1 foot. showers likely with a chance of thunderstorms.
Tuesday
South winds near 5 knots, becoming southeast to south and increasing to 5 to 10 knots. Seas around 1 foot. Showers likely with a chance of thunderstorms.
Tuesday Night
Southeast to south winds 5 to 10 knots. Seas around 1 foot. A chance of thunderstorms. Showers likely.
Wednesday
Southeast winds near 5 knots. Seas around 1 foot. Showers likely with a chance of thunderstorms.
Wednesday Night
East to southeast winds 5 to 10 knots. Seas around 1 foot. Showers likely with a chance of thunderstorms.



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433 AM EDT Sat Sep 19 2026
 
 

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