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Marin County Weather Forecast
| REST OF TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
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| Mostly Clear | Sunny | Partly Cloudy | Partly Cloudy | Mostly Clear | Partly Cloudy | Mostly Clear | Mostly Clear | Mostly Clear | Partly Cloudy | Chance of Rain | Chance of Rain |
| Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C | Hi: 81°FHi: 27°C Lo: 51°FLo: 11°C | Hi: 81°FHi: 27°C Lo: 51°FLo: 11°C | Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C | Hi: 79°FHi: 26°C Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C Lo: 59°FLo: 15°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 302 AM PDT Fri Sep 04 2026 
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Issued: 439 AM PDT Fri Sep 4 2026
Key Messages
Updated at 1151 PM PDT Thu Sep 3 2026- Coastal Flood Advisory in effect around high tide bayside Marin County Friday afternoon and evening
- Hazardous beach conditions at Pacific Coast beaches Friday through Monday
- Below normal temperatures through the weekend, a gradual warming and drying trend Monday through Wednesday
Aviation
... (12Z TAFS) Issued at 424 AM PDT Fri Sep 4 2026
A weak cold front is exiting the southern Bay Area and moving through the Central Coast this morning. Showers re...