Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

For More Weather Information:

Key West, FL Local Forecast Office

3NM SSW Alligator Reef Light FL

Marine Point Forecast

[NOTICE]

Today
High: 78 °F
E 15kt
3ft
Tonight
Low: 73 °F
ENE 15kt
3ft
Thursday
High: 78 °F
E 15kt
2-3ft
Thursday Night
Low: 74 °F
ENE 15kt
2ft
Friday
High: 80 °F
ENE 15kt
2ft
Friday Night
Low: 76 °F
E 15kt
2-3ft
Saturday
High: 80 °F
E 15kt
2ft
Saturday Night
Low: 76 °F
E 15kt
2ft
Sunday
High: 80 °F
E 10kt
1-2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:15 am CDT Apr 15, 2026
Forecast Valid: 6am CDT Apr 15, 2026-6pm CDT Apr 21, 2026

View Nearby Observations

Detailed Forecast

Today

E wind around 15 kt. Mostly sunny. Seas around 3 ft.

Tonight

ENE wind around 15 kt. Partly cloudy. Seas around 3 ft.

Thursday

E wind 10 to 15 kt. Mostly sunny. Seas 2 to 3 ft.

Thursday Night

ENE wind around 15 kt. A slight chance of showers. Seas around 2 ft.

Friday

ENE wind 10 to 15 kt. A slight chance of showers. Seas around 2 ft.

Friday Night

E wind 10 to 15 kt. A slight chance of showers. Seas 2 to 3 ft.

Saturday

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

Saturday Night

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

Sunday

E wind 5 to 10 kt. Mostly sunny. Seas 1 to 2 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.