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Sutter Island, CA Weather Forecast
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Sutter Island Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SUNDAY | MONDAY |
 |  |  |  | | | | | | | |
| Sunny | Mostly Cloudy | Clearing | Mostly Clear | Mostly Sunny | Clear | Sunny | Clear | Clear | Clear | Clear |
| Hi: 92°FHi: 33°C | Lo: 69°FLo: 21°C | Hi: 96°FHi: 36°C | Lo: 72°FLo: 22°C | Hi: 93°FHi: 34°C | Lo: 63°FLo: 17°C | Hi: 86°FHi: 30°C | Hi: 84°FHi: 29°C Lo: 59°FLo: 15°C | Hi: 84°FHi: 29°C Lo: 59°FLo: 15°C | Hi: 84°FHi: 29°C Lo: 59°FLo: 15°C | Hi: 84°FHi: 29°C Lo: 59°FLo: 15°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 800 AM PDT Tue Sep 08 2026 
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Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1219 PM PDT Mon Sep 7 2026
Key Messages
- Drying and warming trend through Thursday, with areas of Moderate to Major HeatRisk Wednesday and Thursday.
- Heat Advisory is in effect 10 am Wednesday - 10 pm Thursday for the Delta, Valley, and foothills.
- Cooling temperatures and breezy onshore winds Friday into the weekend.
Discussion
...
Today-Thursday: While troughing aloft over the PacNW remains the primary driving feature of the weather pattern today, ridging aloft is beginning to build westward from the Desert Southwest. As the b...