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

4NM NW Seattle WA

Marine Point Forecast

[NOTICE]

Tonight
N 8kt⇓
< 1ft
Thursday
N 15kt
< 1ft
Thursday Night
N 13kt⇓
< 1ft
Juneteenth
⇑N 8kt
< 1ft
Friday Night
SSW 11kt
< 1ft
Saturday
S 15kt
< 1ft
Saturday Night
S 10kt
< 1ft
Sunday
⇑N 8kt
< 1ft
Sunday Night
N 12kt⇓
< 1ft

Associated Zone Forecast which includes this point

Last Update: 11:26 am PDT Jun 17, 2026
Forecast Valid: 9pm PDT Jun 17, 2026-6pm PDT Jun 24, 2026

View Nearby Observations

Detailed Forecast

Tonight

N wind 5 to 8 kt becoming variable and less than 5 kt. Mostly clear. Waves 1 ft or less.

Thursday

N wind 10 to 15 kt. Sunny. Waves 1 ft or less.

Thursday Night

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 8 kt in the morning. Mostly sunny. Waves 1 ft or less.

Friday Night

N wind 6 to 11 kt becoming SSW after midnight. Mostly clear. Waves 1 ft or less.

Saturday

S wind 7 to 15 kt. Mostly sunny. Waves 1 ft or less.

Saturday Night

S wind 6 to 10 kt. Mostly clear. Waves 1 ft or less.

Sunday

Variable winds less than 5 kt becoming N 5 to 8 kt in the afternoon. Sunny. Waves 1 ft or less.

Sunday Night

N wind 7 to 12 kt becoming variable and less than 5 kt after midnight. Mostly clear. 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.