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St. James Square Weather Forecast
| REST OF TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY |
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| Sunny | Partly Cloudy | Partly Cloudy | Mostly Clear | Partly Cloudy | Partly Cloudy | Mostly Cloudy | Mostly Clear | Mostly Clear | Clear | Clear | Clear |
| Hi: 86°FHi: 30°C | Lo: 59°FLo: 15°C | Hi: 80°FHi: 27°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Hi: 79°FHi: 26°C Lo: 51°FLo: 11°C | Hi: 79°FHi: 26°C Lo: 51°FLo: 11°C | Hi: 86°FHi: 30°C Lo: 59°FLo: 15°C | Hi: 86°FHi: 30°C Lo: 59°FLo: 15°C | Hi: 86°FHi: 30°C Lo: 59°FLo: 15°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 302 PM PDT Thu Sep 24 2026 
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Issued: 444 PM PDT Thu Sep 24 2026
Key Messages
Updated at 920 AM PDT Thu Sep 24 2026- Warming trend persists today bringing pockets of moderate HeatRisk across parts of the Bay Area and Central Coast.
- Cooler conditions arrive Friday into the weekend.
- Near seasonal temperatures early next week.
Aviation
... (00Z TAFS) Issued at 421 PM PDT Thu Sep 24 2026
VFR conditions across all terminals this afternoon with a compressed marine layer confined to the coastline. VFR conditions are expected until late in the overnight hours to near sunr...