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Miami - South Florida Local Forecast Office

5NM W Key Biscayne FL

Marine Point Forecast

[NOTICE]

Today
High: 81 °F
NW 9kt
Tonight
Low: 63 °F
NNW 13kt
Saturday
High: 72 °F
N 14kt
Saturday Night
Low: 63 °F
N 12kt
Sunday
High: 78 °F
ENE 13kt
Sunday Night
Low: 72 °F
ENE 15kt
Monday
High: 80 °F
ENE 20kt
Monday Night
Low: 74 °F
ENE 20kt
Tuesday
High: 80 °F
ENE 19kt

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:21 am EST Nov 13, 2026
Forecast Valid: 6am EST Nov 13, 2026-6pm EST Nov 19, 2026

View Nearby Observations

Detailed Forecast

Today

NW wind 6 to 9 kt. Partly sunny. Bay waters smooth becoming a light chop.

Tonight

NNW wind 9 to 13 kt. Mostly clear. Bay waters a light chop.

Saturday

N wind 10 to 14 kt. Sunny. Bay waters a light chop.

Saturday Night

N wind 10 to 12 kt. Partly cloudy. Bay waters a light chop.

Sunday

N wind 10 to 13 kt becoming ENE in the afternoon. Mostly sunny. Bay waters a light chop becoming a moderate chop.

Sunday Night

ENE wind 13 to 15 kt. Partly cloudy. Bay waters a moderate chop.

Monday

ENE wind 17 to 20 kt. A slight chance of showers after 1pm. Bay waters choppy in exposed areas.

Monday Night

ENE wind 18 to 20 kt. A slight chance of showers. Bay waters choppy in exposed areas.

Tuesday

ENE wind around 19 kt, with gusts as high as 25 kt. A chance of showers, with thunderstorms also possible after 1pm. Bay waters choppy in exposed areas.

*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.