Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

For More Weather Information:

Seattle, WA Local Forecast Office

6NM WSW Seattle WA

Marine Point Forecast

[NOTICE]

Today
N 14kt
1ft
Tonight
N 13kt⇓
< 1ft
Juneteenth
⇑N 7kt
< 1ft
Friday Night
SSW 11kt
< 1ft
Saturday
SSW 14kt
1ft
Saturday Night
SW 11kt
1ft
Sunday
⇑N 7kt
< 1ft
Sunday Night
N 11kt⇓
< 1ft
Monday
⇑N 12kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 11:25 pm PDT Jun 17, 2026
Forecast Valid: 5am PDT Jun 18, 2026-6pm PDT Jun 24, 2026

View Nearby Observations

Detailed Forecast

Today

N wind 8 to 14 kt. Sunny. Waves around 1 ft.

Tonight

N wind 8 to 13 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Waves 1 ft or less.

Juneteenth

Variable winds less than 5 kt becoming N 5 to 7 kt in the morning. Mostly sunny. Waves 1 ft or less.

Friday Night

N wind 7 to 11 kt becoming SSW after midnight. Mostly clear. Waves 1 ft or less.

Saturday

SSW wind 8 to 14 kt. Mostly sunny. Waves around 1 ft.

Saturday Night

SW wind 7 to 11 kt. Clear. Waves around 1 ft.

Sunday

Variable winds less than 5 kt becoming N 5 to 7 kt in the afternoon. Sunny. Waves 1 ft or less.

Sunday Night

N wind 6 to 11 kt becoming variable and less than 5 kt after midnight. Mostly clear. Waves 1 ft or less.

Monday

Variable winds less than 5 kt becoming N 7 to 12 kt in the morning. Sunny. Waves 1 ft or less.

*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.