Fire Weather Concerns West; Thunderstorms in the Upper Midwest

Dry and breezy conditions will enhance fire weather concerns across portions of the northern and central High Plains through Saturday, where fuels remain largely receptive. Severe thunderstorms are possible across portions of central Nebraska to the Upper Midwest this Friday afternoon into tonight. Read More >

Last Update: 842 PM PDT Thu Sep 10 2026

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San Francisco Bay Area/Monterey, CA Local Forecast Office

12NM SW San Francisco CA

Marine Zone Forecast

Tonight

NW wind 5 to 10 kt. Seas 3 to 5 ft. Wave detail: W 4 ft at 7 seconds and SW 2 ft at 16 seconds. Patchy dense fog late this evening and overnight.

Fri

W wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Seas 3 to 5 ft. Wave detail: W 4 ft at 7 seconds and SW 2 ft at 15 seconds. Patchy dense fog in the morning.

Fri Night

NW wind 10 to 15 kt. Seas 4 to 6 ft. Wave detail: NW 5 ft at 8 seconds and SW 2 ft at 15 seconds.

Sat

NW wind 10 to 15 kt, rising to 15 to 20 kt in the afternoon. Seas 4 to 6 ft. Wave detail: NW 5 ft at 7 seconds and SW 2 ft at 14 seconds.

Sat Night

NW wind 15 to 20 kt. Seas 4 to 6 ft. Wave detail: NW 5 ft at 7 seconds and SW 2 ft at 14 seconds.

Sun

NW wind 15 to 20 kt. Seas 4 to 6 ft. Wave detail: NW 5 ft at 7 seconds and SW 2 ft at 14 seconds.

Sun Night

NW wind 15 to 20 kt. Seas 5 to 7 ft. Wave detail: NW 7 ft at 8 seconds.

Mon

NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave detail: W 6 ft at 9 seconds.

Mon Night

NW wind 15 to 20 kt, easing to 10 to 15 kt after midnight. Seas 5 to 8 ft. Wave detail: NW 7 ft at 9 seconds.

Tue

NW wind 10 to 15 kt, becoming W around 5 kt in the afternoon. Seas 5 to 7 ft. Wave detail: W 6 ft at 8 seconds.

Tue Night

W wind 5 to 10 kt. Seas 3 to 5 ft. Wave detail: W 4 ft at 8 seconds.

.....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 2.8 kt at 05:16 am friday and 3.2 kt at 05:40 pm friday.

.....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 2.8 kt at 05:16 AM Friday and 3.2 kt at 05:40 PM Friday.