For More Weather Information:

Miami - South Florida Local Forecast Office

Key Biscayne FL

Marine Point Forecast

[NOTICE]

This Afternoon
High: 82 °F
NNE 18kt
Tonight
Low: 74 °F
N 16kt
Sunday
High: 83 °F
N 20kt
Sunday Night
Low: 77 °F
NNE 21kt
Monday
High: 82 °F
NE 25kt
Monday Night
Low: 77 °F
NE 25kt
Tuesday
High: 83 °F
NE 25kt
Tuesday Night
Low: 77 °F
NE 23kt
Wednesday
High: 83 °F
NE 22kt

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:17 am EDT Oct 24, 2026
Forecast Valid: 1pm EDT Oct 24, 2026-6pm EDT Oct 30, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY EVENING...

This Afternoon

NNE wind around 18 kt. Isolated showers before 4pm. Bay waters a light chop.

Tonight

N wind 12 to 16 kt. Scattered showers before 4am, then isolated showers and thunderstorms between 4am and 5am, then isolated showers after 5am. Bay waters a light chop.

Sunday

N wind 13 to 20 kt. Scattered showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 1pm, then scattered showers and thunderstorms after 1pm. Bay waters a light chop becoming choppy in exposed areas.

Sunday Night

NNE wind around 21 kt. Showers and possibly a thunderstorm. Bay waters choppy in exposed areas becoming a moderate chop.

Monday

NE wind around 25 kt, with gusts as high as 31 kt. Showers and possibly a thunderstorm. Bay waters rough in exposed areas.

Monday Night

NE wind around 25 kt. Scattered showers and thunderstorms. Bay waters rough in exposed areas.

Tuesday

NE wind 23 to 25 kt. Scattered showers and thunderstorms. Bay waters a moderate chop becoming rough in exposed areas.

Tuesday Night

NE wind around 23 kt. A chance of showers and thunderstorms, mainly before 2am. Bay waters rough in exposed areas.

Wednesday

NE wind 20 to 22 kt. A chance of showers and thunderstorms. Bay waters choppy in exposed areas.

Winds and waves higher in and near tstms.

*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.