Weather WorldSan Quentin, CA Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
San Quentin Weather Forecast
| REST OF TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
 |  |  | |  | | | | |  |  | |
| Smoke | Sunny | Patchy Fog | Patchy Fog | Partly Cloudy | Patchy Fog | Patchy Fog | Patchy Fog | Patchy Fog | Partly Cloudy | Mostly Clear | Partly Cloudy |
| Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 76°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 80°FHi: 27°C | Lo: 55°FLo: 13°C | Hi: 76°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 76°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 76°FHi: 24°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 902 PM PDT Sun Sep 13 2026 
San Quentin Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
San Quentin Weather Map
San Quentin Quick Facts
San Quentin Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 932 PM PDT Sun Sep 13 2026
Key Messages
Updated at 1056 AM PDT Sun Sep 13 2026- Gustier, dry offshore winds across the Vaca Range and Altamont Pass tonight into Monday
Aviation
... (06Z TAFS) Issued at 926 PM PDT Sun Sep 13 2026
Currently VFR. MVFR stratus along the San Francisco Peninsula Coast and Monterey Peninsula will impact HAF, MRY, and SNS at least intermittently through mid-to-late morning. Otherwise, VFR and diurnal winds will prevail.
Vicinity of SFO...Currently VFR with westerly flow. High confidence on VFR and diur...