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Sonoma County Weather Forecast
| TODAY | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | TUESDAY | WEDNESDAY | THURSDAY |
 |  |  |  |  | | | | | |
| Mostly Cloudy | Partly Cloudy | Sunny | Mostly Clear | Partly Cloudy | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear |
| Hi: 90°FHi: 32°C | Lo: 67°FLo: 19°C | Hi: 97°FHi: 36°C | Lo: 69°FLo: 21°C | Hi: 97°FHi: 36°C | Lo: 67°FLo: 19°C | Hi: 86°FHi: 30°C Lo: 67°FLo: 19°C | Hi: 86°FHi: 30°C Lo: 67°FLo: 19°C | Hi: 86°FHi: 30°C Lo: 67°FLo: 19°C | Hi: 86°FHi: 30°C Lo: 67°FLo: 19°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 602 AM PDT Fri Oct 02 2026 
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Issued: 442 AM PDT Fri Oct 2 2026
Key Messages
Updated at 1237 AM PDT Fri Oct 2 2026- Moderate to major HeatRisk across the interior through Thursday
- Elevated fire weather conditions across the higher terrain through Thursday
- Minor coastal flooding for bayshore locations along the San Francisco Bay, San Pablo Bay, and Monterey Bay Friday
Aviation
... (12Z TAFS) Issued at 442 AM PDT Fri Oct 2 2026
Similar to Thursday morning, conditions vary from VFR inland to stratus and fog /IFR-LIFR/ along the coastline, in the coastal and inland v...