Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam
Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >
| NWS Forecast for: Gulf of America from West End of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms (GMZ035) Issued by: National Weather Service Key West, FL Last Update: 1026 AM EDT Sat Oct 17 2026 | |
| This Afternoon: Northeast to east winds 5 to 10 knots, becoming northwest to north 10 to 15 knots. Seas 1 foot or less, building to around 1 foot. Nearshore waters smooth to a light chop, becoming a light to moderate chop. Showers likely with a chance of thunderstorms. Tonight: North to northeast winds near 15 knots, increasing to 20 to 25 knots. Seas 1 foot, building to 2 to 4 feet, occasionally to 5 feet, except 1 to 2 feet, building to 4 to 6 feet, occasionally to 8 feet west of the marquesas keys. Nearshore waters a moderate chop, becoming very rough. Showers with a chance of thunderstorms. Sunday: Northeast winds 20 to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 4 to 6 feet, occasionally to 8 feet west of the marquesas keys. Nearshore waters very rough. Showers likely with a chance of thunderstorms. Sunday Night: Northeast winds 20 to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 6 to 7 feet, occasionally to 9 feet west of the marquesas keys. Nearshore waters very rough. A slight chance of showers. Monday: Northeast winds 20 to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 6 to 7 feet, occasionally to 9 feet west of the marquesas keys. Nearshore waters very rough. A slight chance of showers. Monday Night: Northeast winds 20 to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 5 to 6 feet, occasionally to 8 feet west of the marquesas keys. Nearshore waters very rough. A slight chance of showers. Tuesday: Northeast winds near 20 knots, becoming 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet, subsiding to 2 to 4 feet, occasionally to 5 feet. Nearshore waters rough, becoming choppy. A slight chance of showers. Tuesday Night: Northeast winds 15 to 20 knots. Seas 2 to 4 feet, occasionally to 5 feet, subsiding to 2 to 3 feet. nearshore waters choppy. A slight chance of showers. Wednesday: North to northeast winds 15 to 20 knots, becoming 10 to 15 knots. Seas 2 to 3 feet. Nearshore waters choppy, becoming light to moderate chop. A slight chance of showers. Wednesday Night: North to northeast winds 10 to 15 knots. Seas 2 to 3 feet. Nearshore waters a light to moderate chop. A slight chance of showers. | |
| Zone Forecast: Gulf of America from West End of Seven Mile Bridge to Halfmoon Shoal out to 5 Fathoms (GMZ035) | |
Visit your local NWS office at: https://www.weather.gov/key |