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Fort Mason Chapel Weather Forecast
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| Partly Cloudy | Drizzle | Drizzle | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear | Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Hi: 60°FHi: 16°C | Lo: 55°FLo: 13°C | Hi: 66°FHi: 19°C | Lo: 59°FLo: 15°C | Hi: 77°FHi: 25°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C Lo: 59°FLo: 15°C | Hi: 66°FHi: 19°C Lo: 59°FLo: 15°C | Hi: 66°FHi: 19°C Lo: 59°FLo: 15°C | Hi: 66°FHi: 19°C Lo: 59°FLo: 15°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 302 PM PDT Sun Sep 27 2026 
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Issued: 521 PM PDT Sun Sep 27 2026
Key Messages
Updated at 1214 PM PDT Sun Sep 27 2026- Cool conditions today
- Warming trend for the rest of the week
Aviation
... (00Z TAFS) Issued at 445 PM PDT Sun Sep 27 2026
A mix of VFR/MVFR despite limited extent of stratus coverage currently. Guidance is mixed on coverage of potential stratus overnight and early Monday morning. A surge of dry air is complicating the forecast even with a marine layer measured at 2000ft by the KOAK 00z balloon launch.
Vicinity of SFO...MVFR ceilings have been steady...