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Petaluma High School Weather Forecast
| REST OF TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | THURSDAY | FRIDAY | FRIDAY NIGHT | SATURDAY |
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| Partly Cloudy | Patchy Fog | Patchy Fog | Patchy Fog | Patchy Fog | Mostly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear |
| Hi: 76°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 76°FHi: 24°C | Lo: 56°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 Lo: 55°FLo: 13°C | Hi: 76°FHi: 24°C Lo: 59°FLo: 15°C | Hi: 76°FHi: 24°C Lo: 59°FLo: 15°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 302 PM PDT Sun Aug 16 2026 
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Issued: 130 PM PDT Sun Aug 16 2026
Key Messages
Updated at 1222 PM PDT Sun Aug 16 2026
- Shallower marine layer expected the next few days
- Minor fluctuations in temperatures this week.
Aviation
... (18Z TAFS) Issued at 1044 AM PDT Sun Aug 16 2026
Stratus, fog, patchy drizzle /MVFR-IFR-LIFR/ are steadily mixing out and dissipating otherwise it`s VFR. Stratus, fog and patchy drizzle /MVFR-IFR-LIFR/ redevelop tonight and Monday morning.
Vicinity of SFO...Stratus /MVFR/ mixing out to VFR 1930z today. Stratus /M...