Another Arctic Blast in the East; Eastern U.S. Winter Storm

A powerful Arctic blast will bring dangerously cold, record low temperatures to the upper Ohio Valley, Mid-Atlantic, Gulf Coast and Southeast U.S. this weekend. A rapidly deepening storm will produce widespread heavy snow and wind from the southern Appalachians across the Carolinas and southern Virginia into Sunday. Storm-force winds and coastal flooding will be possible along the East Coast. Read More >

Hazardous Weather Conditions

For More Weather Information:

Key West, FL Local Forecast Office

3NM WSW Islamorada FL

Marine Point Forecast

[NOTICE]

Today
High: 65 °F
W 15kt
< 1ft
Tonight
Low: 42 °F
NW 25kt
< 1ft
Sunday
High: 54 °F
NW 15kt
< 1ft
Sunday Night
Low: 44 °F
NW 15kt
< 1ft
Monday
High: 59 °F
NNW 10kt
< 1ft
Monday Night
Low: 51 °F
N 10kt
< 1ft
Tuesday
High: 66 °F
N 10kt
< 1ft
Tuesday Night
Low: 61 °F
ENE 10kt
< 1ft
Wednesday
High: 69 °F
Light Wind
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 8:15 am CST Jan 31, 2026
Forecast Valid: 8am CST Jan 31, 2026-6pm CST Feb 6, 2026

View Nearby Observations

Detailed Forecast

Today

W wind 5 to 15 kt. A chance of showers. Seas 1 ft or less.

Tonight

NW wind 20 to 25 kt, with gusts as high as 35 kt. Partly cloudy. Seas 1 ft or less.

Sunday

NW wind around 15 kt. Sunny. Seas 1 ft or less.

Sunday Night

NW wind 10 to 15 kt. Mostly clear. Seas 1 ft or less.

Monday

NNW wind around 10 kt. Sunny. Seas 1 ft or less.

Monday Night

N wind around 10 kt. Mostly clear. Seas 1 ft or less.

Tuesday

N wind 5 to 10 kt becoming NE in the afternoon. Sunny. Seas 1 ft or less.

Tuesday Night

ENE wind 5 to 10 kt. Partly cloudy. Seas 1 ft or less.

Wednesday

Variable winds 5 kt or less. Mostly sunny. Seas 1 ft or less.

*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.