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 >
| NWS Forecast for: Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM (GMZ055) Issued by: National Weather Service Key West, FL Last Update: 433 AM EDT Sat Sep 19 2026 | |
Today: East winds near 5 knots. Seas 1 to 2 feet. Wave detail: east 1 foot at 4 seconds. A chance of showers and thunderstorms. Tonight: East to southeast winds 5 to 10 knots, becoming south. Seas 1 to 2 feet. Wave detail: east to southeast 1 foot at 4 seconds. A chance of showers and thunderstorms. Sunday: Southwest winds near 5 knots. Seas around 1 foot. Wave detail: southeast 1 foot at 4 seconds. A chance of showers and thunderstorms. Sunday Night: South winds 5 to 10 knots. Seas 1 to 2 feet. showers likely with a chance of thunderstorms. Monday: South to southwest winds 5 to 10 knots. Seas 1 to 2 feet. Showers likely with a chance of thunderstorms. Monday Night: Southeast to south winds 5 to 10 knots. Seas 1 to 2 feet. A chance of showers and thunderstorms. Tuesday: Southeast to south winds 5 to 10 knots. Seas 1 to 2 feet. Showers likely with a chance of thunderstorms. Tuesday Night: Southeast winds 5 to 10 knots. Seas 1 to 2 feet. Showers likely with a chance of thunderstorms. Wednesday: Southeast winds 5 to 10 knots. Seas 1 to 2 feet. showers likely with a chance of thunderstorms. Wednesday Night: East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. Showers likely with a chance of thunderstorms. | |
| Zone Forecast: Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM (GMZ055) | |
Visit your local NWS office at: https://www.weather.gov/key |