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

13NM S Seattle WA

Marine Point Forecast

[NOTICE]

Tonight
Light Wind
< 1ft
Thursday
⇑NNW 6kt
< 1ft
Thursday Night
Light Wind
< 1ft
Friday
Light Wind
< 1ft
Friday Night
⇑SSW 8kt
< 1ft
Saturday
SSW 12kt
1ft
Saturday Night
SSW 12kt
1ft
Sunday
SSW 7kt
< 1ft
Sunday Night
N 6kt
< 1ft

Associated Zone Forecast which includes this point

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

View Nearby Observations

Detailed Forecast

Tonight

Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.

Thursday

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

Thursday Night

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

Friday

Variable winds 5 kt or less. Partly sunny. Waves 1 ft or less.

Friday Night

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

Saturday

SSW wind 7 to 12 kt. A chance of showers and thunderstorms. Waves around 1 ft.

Saturday Night

SSW wind 8 to 12 kt. Mostly cloudy. Waves around 1 ft.

Sunday

SSW wind 5 to 7 kt. Mostly cloudy. Waves 1 ft or less.

Sunday Night

WNW wind around 6 kt becoming NNE after midnight. 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.