Tracking Winter Weather and Frigid Temperatures This Weekend

Another clipper will drop into the Northern Plains and Upper Midwest into Sunday with snow and gusty winds contributing to some areas of blizzard conditions and snow squalls. Impactful snowfall will occur up and down the East Coast Sunday extending from the western Florida Panhandle to Maine. Read More >

For More Weather Information:

Key West, FL Local Forecast Office

Boot Key Harbor FL

Marine Point Forecast

[NOTICE]

Today
High: 76 °F
⇑NNW 15kt
< 1ft
Tonight
Low: 55 °F
N 15kt
< 1ft
M.L.King Day
High: 64 °F
N 15kt
< 1ft
Monday Night
Low: 60 °F
NNE 15kt
< 1ft
Tuesday
High: 70 °F
NE 15kt
< 1ft
Tuesday Night
Low: 66 °F
NE 15kt
< 1ft
Wednesday
High: 76 °F
NE 15kt
< 1ft
Wednesday Night
Low: 69 °F
NE 15kt
< 1ft
Thursday
High: 78 °F
NNE 10kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:15 am CST Jan 18, 2026
Forecast Valid: 6am CST Jan 18, 2026-6pm CST Jan 24, 2026

View Nearby Observations

Detailed Forecast

Today

Variable winds less than 5 kt becoming NNW 10 to 15 kt in the afternoon. A chance of showers. Seas 1 ft or less.

Tonight

N wind around 15 kt. A slight chance of showers. Seas 1 ft or less.

M.L.King Day

N wind 10 to 15 kt. Mostly sunny. Seas 1 ft or less.

Monday Night

NNE wind 10 to 15 kt. Mostly cloudy. Seas 1 ft or less.

Tuesday

NE wind around 15 kt. Partly sunny. Seas 1 ft or less.

Tuesday Night

NE wind around 15 kt. Mostly cloudy. Seas 1 ft or less.

Wednesday

NE wind around 15 kt. A slight chance of showers. Seas 1 ft or less.

Wednesday Night

NE wind 10 to 15 kt. A slight chance of showers. Seas 1 ft or less.

Thursday

NNE wind 5 to 10 kt. A chance of showers. 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.