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

23NM NW Seattle WA

Marine Point Forecast

[NOTICE]

This Afternoon
Light Wind
< 1ft
Tonight
Light Wind
< 1ft
Thursday
⇑N 6kt
< 1ft
Thursday Night
Light Wind
< 1ft
Friday
⇑NNW 6kt
< 1ft
Friday Night
Light Wind
< 1ft
Saturday
⇑SSE 7kt
< 1ft
Saturday Night
Light Wind
< 1ft
Sunday
⇑N 6kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 11:26 am PDT Aug 19, 2026
Forecast Valid: 3pm PDT Aug 19, 2026-6pm PDT Aug 26, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

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

Tonight

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

Thursday

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

Thursday Night

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

Friday

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

Friday Night

Variable winds 5 kt or less. A slight chance of showers after 11pm. Waves 1 ft or less.

Saturday

Variable winds less than 5 kt becoming SSE 5 to 7 kt in the morning. Showers likely before 8am, then showers likely and possibly a thunderstorm between 8am and 11am, then a chance of showers and thunderstorms after 11am. Waves 1 ft or less.

Saturday Night

Variable winds 5 kt or less. A chance of rain. Waves 1 ft or less.

Sunday

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