Weather WorldLake Sylvia, CA Weather Forecast
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Lake Sylvia Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY | MONDAY NIGHT |
 |  | | | | | | |  |  | | |
| Sunny | Clear | Sunny | Mostly Clear | Sunny | Clear | Mostly Sunny | Mostly Clear | Chance of Rain | Rain and Snow | Rain and Snow | Rain and Snow |
| Hi: 77°FHi: 25°C | Lo: 55°FLo: 13°C | Hi: 78°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 74°FHi: 23°C | Lo: 50°FLo: 10°C | Hi: 61°FHi: 16°C | Lo: 41°FLo: 5°C | Hi: 53°FHi: 12°C | Hi: 53°FHi: 12°C Lo: 38°FLo: 3°C | Hi: 53°FHi: 12°C Lo: 38°FLo: 3°C | Lo: 37°FLo: 3°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 201 AM PDT Wed Oct 07 2026 
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Issued: 1159 AM PDT Tue Oct 6 2026
Key Messages
- Heat Advisory now in effect till 10 PM Friday for the Sacramento Valley, Delta, northern San Joaquin Valley, and adjacent foothills.
- Widespread Moderate HeatRisk with areas of Major HeatRisk through Friday for the Delta, Valley, and Foothills.
- Confidence is increasing for a cooling trend over the weekend/into next week, with some potential for unsettled weather, and elevated fire weather conditions.
Discussion
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...Today through Friday... Mostly clear skies with some lingering haze ob...