Heavy Rainfall for Portions of the West and Central U.S.; Monitoring Fire Weather Conditions for New England

Tropical moisture continues to flow across portions of the Great Basin, desert Southwest and California. Isolated instances of flash flooding remains possible. Meanwhile, a storm and associated frontal boundary will focus showers and thunderstorms for the center of the nation. For New England, dry and breezy conditions could enhance favorable fire weather conditions. Read More >

For More Weather Information:

Miami - South Florida Local Forecast Office

3NM WSW Key Biscayne FL

Marine Point Forecast

[NOTICE]

Saturday
High: 87 °F
N 13kt
Saturday Night
Low: 81 °F
NE 13kt
Sunday
High: 87 °F
ENE 10kt
Sunday Night
Low: 81 °F
E 10kt
Monday
High: 86 °F
ESE 8kt
Monday Night
Low: 81 °F
ENE 8kt
Tuesday
High: 88 °F
SE 7kt
Tuesday Night
Low: 81 °F
ESE 6kt
Wednesday
High: 87 °F
E 6kt

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:01 am EDT Sep 20, 2025
Forecast Valid: 2am EDT Sep 20, 2025-6pm EDT Sep 26, 2025

View Nearby Observations

Detailed Forecast

Saturday

N wind 9 to 13 kt. A chance of showers and thunderstorms, mainly after 1pm. Bay waters a light chop becoming a moderate chop.

Saturday Night

NE wind 10 to 13 kt. A slight chance of showers and thunderstorms before 2am, then a slight chance of showers and thunderstorms after 5am. Bay waters a moderate chop becoming a light chop.

Sunday

ENE wind around 10 kt. A chance of showers and thunderstorms, mainly after 7am. Bay waters a light chop.

Sunday Night

E wind 8 to 10 kt. A chance of showers and thunderstorms. Bay waters a light chop.

Monday

ESE wind around 8 kt. A chance of showers and thunderstorms. Bay waters smooth becoming a light chop.

Monday Night

ENE wind around 8 kt. A chance of showers and thunderstorms. Bay waters a light chop becoming smooth.

Tuesday

SE wind 5 to 7 kt. A chance of showers and thunderstorms. Bay waters smooth.

Tuesday Night

ESE wind around 6 kt. A chance of showers and thunderstorms, mainly before 2am. Bay waters smooth.

Wednesday

E wind around 6 kt. A chance of showers and thunderstorms, mainly after 8am. Bay waters smooth.

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.