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Flood School Weather Forecast
| TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
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| Partly Cloudy | Mostly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Clear | Sunny | Partly Cloudy | Partly Cloudy | Mostly Clear | Partly Cloudy | Mostly Clear | Partly Cloudy |
| Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 83°FHi: 28°C | Lo: 60°FLo: 16°C | Hi: 76°FHi: 24°C | Hi: 79°FHi: 26°C Lo: 60°FLo: 16°C | Hi: 79°FHi: 26°C Lo: 60°FLo: 16°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 70°FHi: 21°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 602 PM PDT Mon Sep 21 2026 
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Issued: 457 PM PDT Mon Sep 21 2026
Key Messages
Updated at 1120 AM PDT Mon Sep 21 2026- Cool today
- Warmer temperatures Wednesday - Thursday
- Cooler weather returns Friday
Aviation
... (00Z TAFS) Issued at 457 PM PDT Mon Sep 21 2026
Marine layer remains entrenched along the coast and locally inland already as of 00z and will spread inland efficiently and early this evening with a trough over the region. Low cigs to linger at least through 18-19z Tuesday before mixing out.
Vicinity of SFO...Low cigs to push over the terminal early this ev...