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: Gulf of America including Dry Tortugas and Rebecca Shoal Channel (GMZ034) Issued by: National Weather Service Key West, FL Last Update: 1027 PM EDT Sat Sep 19 2026 | |
Overnight: Variable winds near 5 knots, becoming southeast to south. Seas 1 foot or less. Wave detail: east 1 foot at 2 seconds. Showers likely with a chance of thunderstorms. Winds and seas higher in the vicinity of any thunderstorm. 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 near 10 knots. Seas building to around 1 foot. Wave detail: south 1 foot at 3 seconds. 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 Through Thursday Night: East to southeast winds 5 to 10 knots. Seas around 1 foot. A chance of showers with a slight chance of thunderstorms. | |
| Zone Forecast: Gulf of America including Dry Tortugas and Rebecca Shoal Channel (GMZ034) | |
Visit your local NWS office at: https://www.weather.gov/key |