Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

For More Weather Information:

Seattle, WA Local Forecast Office

7NM W Seattle WA

Marine Point Forecast

[NOTICE]

Tonight
NNE 6kt⇓
< 1ft
Thursday
⇑NNE 7kt
< 1ft
Thursday Night
N 6kt⇓
< 1ft
Friday
⇑N 6kt
< 1ft
Friday Night
⇑S 8kt
< 1ft
Saturday
S 12kt
1ft
Saturday Night
SSW 13kt
1ft
Sunday
S 7kt
< 1ft
Sunday Night
N 8kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 11:26 am PDT Aug 19, 2026
Forecast Valid: 7pm PDT Aug 19, 2026-6pm PDT Aug 26, 2026

View Nearby Observations

Detailed Forecast

Tonight

NNE wind around 6 kt becoming variable and less than 5 kt after midnight. Mostly clear. Waves 1 ft or less.

Thursday

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

Thursday Night

N wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly clear. Waves 1 ft or less.

Friday

Variable winds less than 5 kt becoming N around 6 kt in the afternoon. Partly sunny. Waves 1 ft or less.

Friday Night

Variable winds less than 5 kt becoming S 5 to 8 kt after midnight. A slight chance of showers after 11pm. Waves 1 ft or less.

Saturday

S wind 9 to 12 kt. A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 11am, then a chance of showers after 11am. Waves around 1 ft.

Saturday Night

SSW wind 11 to 13 kt. Mostly cloudy. Waves around 1 ft.

Sunday

S wind around 7 kt. Mostly cloudy. Waves 1 ft or less.

Sunday Night

N wind 5 to 8 kt. Partly cloudy. 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.