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 >

Hazardous Weather Conditions

Small Craft Advisory in effect from October 17, 09:30 PM CDT until October 18, 10:00 PM CDT

Last Update: 1029 PM EDT Sat Oct 17 2026

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For More Weather Information:

Key West, FL Local Forecast Office

23NM N Smith Shoal Light FL

Marine Zone Forecast

Tonight

Northeast winds 15 to 20 knots, increasing to 20 to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet, building to 5 to 8 feet, occasionally to 10 feet. Wave detail: north 3 feet at 5 seconds, becoming north 6 feet at 7 seconds. showers with a slight chance of thunderstorms.

Sunday

Northeast winds 20 to 25 knots, increasing to 25 to 30 knots. Seas 5 to 8 feet, occasionally to 10 feet. Wave detail: north 6 feet at 7 seconds. A chance of showers with a slight chance of thunderstorms.

Sunday Night

Northeast winds 25 to 30 knots, decreasing to 20 to 25 knots. Seas 5 to 8 feet, occasionally to 10 feet. Wave detail: northeast 8 feet at 7 seconds. A chance of showers with a slight chance of thunderstorms.

Monday

Northeast winds 20 to 25 knots. Seas 5 to 8 feet, occasionally to 10 feet, subsiding to 4 to 6 feet, occasionally to 8 feet. A chance of showers with a slight chance of thunderstorms.

Monday Night

Northeast winds 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet.

Tuesday

Northeast winds 20 to 25 knots, decreasing to near 20 knots. Seas 5 to 7 feet, occasionally to 9 feet, subsiding to 4 to 6 feet, occasionally to 8 feet.

Tuesday Night

Northeast winds near 20 knots. Seas 3 to 5 feet, occasionally to 6 feet.

Wednesday

Northeast winds near 20 knots, decreasing to near 15 knots. Seas 3 to 5 feet, occasionally to 6 feet, subsiding to 2 to 4 feet, occasionally to 5 feet.

Wednesday Night

Northeast winds near 15 knots, increasing to 15 to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. A slight chance of showers.

Thursday

Northeast winds 15 to 20 knots, decreasing to 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. A slight chance of showers.

Thursday Night

North to northeast winds 15 to 20 knots. Seas 2 to 3 feet. A slight chance of showers.