Thunderstorms and Heavy Rainfall in the Southeast, Montana, and Iowa; Lowell Begins to Impact Hawaii

Strong thunderstorms with damaging winds and heavy rain are expected across portions of the Southeast. Thunderstorms may produce large hail across portions of Montana. Heavy rainfall could produce flash flooding across Iowa and vulnerable areas in Utah. Lowell will bring heavy rain, dangerous swells and rip currents to portions of Hawaii. Sweltering heat persists across the South-Central US. Read More >

For More Weather Information:

San Francisco Bay Area/Monterey, CA Local Forecast Office

17NM S San Francisco CA

Marine Point Forecast

[NOTICE]

Today
WNW 10kt
< 1ft
Tonight
NW 9kt⇓
< 1ft
Labor Day
⇑NW 6kt
< 1ft
Monday Night
NW 6kt⇓
< 1ft
Tuesday
Light Wind
< 1ft
Tuesday Night
Light Wind
< 1ft
Wednesday
Light Wind
< 1ft
Wednesday Night
NW 6kt⇓
< 1ft
Thursday
⇑WNW 6kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 8:42 am PDT Sep 6, 2026
Forecast Valid: 10am PDT Sep 6, 2026-6pm PDT Sep 12, 2026

View Nearby Observations

Detailed Forecast

Today

WNW wind 8 to 10 kt. Mostly sunny. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.

Tonight

NW wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Areas of fog after 3am. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.

Labor Day

Variable winds less than 5 kt becoming NW around 6 kt in the afternoon. Areas of fog before 10am. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.

Monday Night

NW wind around 6 kt becoming variable and less than 5 kt in the evening. Partly cloudy. N swell 0 ft. Wind waves 1 ft or less.

Tuesday

Variable winds 5 kt or less. Partly sunny. N swell 0 ft. Wind waves 1 ft or less.

Tuesday Night

Variable winds 5 kt or less. Mostly cloudy. N swell 0 ft. Wind waves 1 ft or less.

Wednesday

Variable winds 5 kt or less. Partly sunny. N swell 0 ft. Wind waves 1 ft or less.

Wednesday Night

NW wind around 6 kt becoming variable and less than 5 kt in the evening. Patchy fog after 11pm. N swell 0 ft. Wind waves 1 ft or less.

Thursday

Variable winds less than 5 kt becoming WNW around 6 kt in the afternoon. Patchy fog before 9am. N swell 0 ft. Wind waves 1 ft or less.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 3 to 5 ft at 16 seconds. ACROSS THE BAR...Swell can be more than twice as high across the bar than surrounding waters. Waves are also more prone to break, particularly during strong ebb currents. Maximum ebb current of 1.3 kt at 01:25 PM Sunday and 2.5 kt at 01:07 AM Monday.

*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.