Heavy Rain in the Southern U.S.; Winter Storm to Impact the Northern Mid-Atlantic and Interior Northeast

A storm system stretching from the Tennessee Valley to the Gulf Coast will bring a variety of hazards to the Eastern U.S. through Tuesday. On the south side of the system, heavy rain and thunderstorms will persist across the Southern U.S. Further north, a wintry precipitation mix is expected from the Central Appalachians to the interior Northeast through Tuesday. Read More >

For More Weather Information:

Key West, FL Local Forecast Office

3NM SSW Alligator Reef Light FL

Marine Point Forecast

[NOTICE]

Tuesday
High: 79 °F
SSE 10kt
2-3ft
Tuesday Night
Low: 72 °F
Light Wind
1ft
Wednesday
High: 77 °F
Light Wind
1ft
Wednesday Night
Low: 71 °F
NNE 10kt
1ft
Thursday
High: 78 °F
ENE 10kt
1-2ft
Thursday Night
Low: 74 °F
ENE 10kt
2ft
Friday
High: 79 °F
ESE 10kt
2ft
Friday Night
Low: 75 °F
SE 10kt
2ft
Saturday
High: 79 °F
S 10kt
1-2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:15 am CST Dec 2, 2025
Forecast Valid: 2am CST Dec 2, 2025-6pm CST Dec 8, 2025

View Nearby Observations

Detailed Forecast

Tuesday

SSE wind around 10 kt becoming SW in the afternoon. Mostly sunny. Seas 2 to 3 ft.

Tuesday Night

Variable winds 5 kt or less. Partly cloudy. Seas around 1 ft.

Wednesday

Variable winds 5 kt or less. Sunny. Seas around 1 ft.

Wednesday Night

NNW wind 5 to 10 kt becoming NNE after midnight. Mostly clear. Seas around 1 ft.

Thursday

ENE wind around 10 kt. Mostly sunny. Seas 1 to 2 ft.

Thursday Night

ENE wind around 10 kt. Partly cloudy. Seas around 2 ft.

Friday

ESE wind around 10 kt. Sunny. Seas around 2 ft.

Friday Night

ESE wind around 10 kt becoming SSE after midnight. Partly cloudy. Seas around 2 ft.

Saturday

S wind 5 to 10 kt. Isolated showers. Seas 1 to 2 ft.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.