Areas of Severe Thunderstorms, Excessive Rainfall, and Extreme Heat Wednesday

In the Upper Midwest, heavy to excessive rain may bring flash and urban flooding through Wednesday. Scattered severe thunderstorms capable of large hail and damaging wind gusts are possible from the central High Plains into the Upper Midwest Wednesday. Extreme heat is ongoing over the Desert Southwest through Thursday. Read More >

For More Weather Information:

Seattle, WA Local Forecast Office

20NM SW Seattle WA

Marine Point Forecast

[NOTICE]

Wednesday
Light Wind
< 1ft
Wednesday Night
Light Wind
< 1ft
Thursday
Light Wind
< 1ft
Thursday Night
W 6kt⇓
< 1ft
Friday
⇑SW 8kt
< 1ft
Friday Night
WSW 9kt⇓
< 1ft
Saturday
SW 8kt
< 1ft
Saturday Night
WSW 9kt⇓
< 1ft
Sunday
⇑NNE 6kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 11:26 pm PDT Jul 7, 2026
Forecast Valid: 3am PDT Jul 8, 2026-6pm PDT Jul 14, 2026

View Nearby Observations

Detailed Forecast

Wednesday

Variable winds 5 kt or less. Cloudy, then gradually becoming mostly sunny. Waves 1 ft or less.

Wednesday Night

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

Thursday

Variable winds 5 kt or less. Mostly cloudy, then gradually becoming sunny. Waves 1 ft or less.

Thursday Night

W 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 SW 5 to 8 kt in the morning. Partly sunny. Waves 1 ft or less.

Friday Night

WSW wind 5 to 9 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Waves 1 ft or less.

Saturday

SW wind 5 to 8 kt. Partly sunny. Waves 1 ft or less.

Saturday Night

WSW wind 5 to 9 kt becoming variable and less than 5 kt in the evening. Mostly clear. Waves 1 ft or less.

Sunday

Variable winds less than 5 kt becoming NNE around 6 kt in the afternoon. Mostly 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.