San Quentin Weather Forecast
Weather forecast for: 10NM NNW San Francisco CA
Last Update: 1:27 pm PDT Sep 16, 2026
Tonight: WSW wind 5 to 8 kt becoming variable and less than 5 kt in the evening. Mostly cloudy.
Thursday: Variable winds 5 kt or less. Mostly cloudy through mid morning, then gradual clearing.
Thursday Night: Variable winds 5 kt or less. Patchy fog after 3am.
Friday: Variable winds less than 5 kt becoming WSW around 6 kt in the afternoon. Patchy fog before 8am.
Friday Night: Variable winds 5 kt or less. Mostly clear.
Saturday: Variable winds less than 5 kt becoming SW around 6 kt in the afternoon. Patchy fog before 7am.
Saturday Night: Variable winds 5 kt or less. Mostly clear.
Sunday: Variable winds less than 5 kt becoming WSW around 6 kt in the morning. Mostly sunny.
Sunday Night: Variable winds 5 kt or less. Partly cloudy.
Marine Point Forecast: 37.94°N 122.48°W