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City of Santa Rosa, CASanta Rosa, CA Weather Forecast
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| REST OF TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
 |  |  | | | |  | | | |  |  |
| Partly Cloudy | Chance of Rain | Chance of Rain | Chance of Rain | Chance of Rain | Chance of Rain | Patchy Fog | Patchy Fog | Patchy Fog | Patchy Fog | Mostly Clear | Partly Cloudy |
| 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: 77°FHi: 25°C | Hi: 71°FHi: 22°C Lo: 59°FLo: 15°C | Hi: 71°FHi: 22°C Lo: 59°FLo: 15°C | Lo: 46°FLo: 8°C | Hi: 75°FHi: 24°C | Lo: 50°FLo: 10°C | Hi: 76°FHi: 24°C |
| POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 902 PM PDT Mon Aug 31 2026 
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Issued: 1058 PM PDT Mon Aug 31 2026
Key Messages
Updated at 1039 PM PDT Mon Aug 31 2026- Cooler weather continues through the week
- Beneficial wetting rain expected in the North Bay
Aviation
... (06Z TAFS) Issued at 1019 PM PDT Mon Aug 31 2026
MVFR stratus has lingered through the day across portions of the SF Bay Area, and is beginning to expand again across the North Bay and into the Monterey Bay region. High clouds may interrupt the radiational cooling across portions of the South Bay and Central Coast, but a very deep marine layer s...