Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

For More Weather Information:

Seattle, WA Local Forecast Office

20NM SSW Seattle WA

Marine Point Forecast

[NOTICE]

Wednesday
Light Wind
< 1ft
Wednesday Night
Light Wind
< 1ft
Thursday
Light Wind
< 1ft
Thursday Night
Light Wind
< 1ft
Friday
Light Wind
< 1ft
Friday Night
⇑SW 6kt
< 1ft
Saturday
SSW 9kt
< 1ft
Saturday Night
SW 9kt
< 1ft
Sunday
Light Wind
< 1ft

Associated Zone Forecast which includes this point

Last Update: 11:26 pm PDT Aug 18, 2026
Forecast Valid: 2am PDT Aug 19, 2026-6pm PDT Aug 25, 2026

View Nearby Observations

Detailed Forecast

Wednesday

Variable winds 5 kt or less. Cloudy through mid morning, then gradual clearing. Waves 1 ft or less.

Wednesday Night

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

Thursday

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

Thursday Night

Variable winds 5 kt or less. Increasing clouds. 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 SW around 6 kt after midnight. A slight chance of rain after 11pm. Waves 1 ft or less.

Saturday

SSW wind 5 to 9 kt. A chance of rain, mainly before 11am. Waves 1 ft or less.

Saturday Night

SW wind 5 to 9 kt. Mostly cloudy. Waves 1 ft or less.

Sunday

Variable winds 5 kt or less. Mostly 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.