Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

For More Weather Information:

Key West, FL Local Forecast Office

3NM N American Shoal Light FL

Marine Point Forecast

[NOTICE]

Today
High: 78 °F
ENE 15kt
2-3ft
Tonight
Low: 72 °F
ENE 15kt
2ft
Christmas Day
High: 77 °F
NE 15kt
2ft
Thursday Night
Low: 71 °F
N 10kt
1-2ft
Friday
High: 77 °F
NNE 10kt
1ft
Friday Night
Low: 71 °F
Light Wind
1ft
Saturday
High: 77 °F
Light Wind
< 1ft
Saturday Night
Low: 71 °F
Light Wind
< 1ft
Sunday
High: 77 °F
ENE 10kt
1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:15 am CST Dec 24, 2025
Forecast Valid: 9am CST Dec 24, 2025-6pm CST Dec 30, 2025

View Nearby Observations

Detailed Forecast

Today

ENE wind around 15 kt. Sunny. Seas 2 to 3 ft.

Tonight

ENE wind 10 to 15 kt. Mostly clear. Seas around 2 ft.

Christmas Day

NE wind 10 to 15 kt. Sunny. Seas around 2 ft.

Thursday Night

N wind 5 to 10 kt. Mostly clear. Seas 1 to 2 ft.

Friday

NNE wind 5 to 10 kt. Sunny. Seas around 1 ft.

Friday Night

Variable winds 5 kt or less. Mostly clear. Seas around 1 ft.

Saturday

Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

Saturday Night

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

Sunday

ENE wind 5 to 10 kt. Sunny. Seas around 1 ft.

*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.