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Finnon Reservoir Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | SATURDAY | SATURDAY NIGHT | SUNDAY |
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| Clearing | Partly Cloudy | Mostly Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Clear | Mostly Clear | Clear | Mostly Sunny |
| Hi: 90°FHi: 32°C | Lo: 65°FLo: 18°C | Hi: 92°FHi: 33°C | Lo: 67°FLo: 19°C | Hi: 92°FHi: 33°C | Lo: 67°FLo: 19°C | Hi: 91°FHi: 33°C | Lo: 66°FLo: 19°C | Hi: 88°FHi: 31°C Lo: 65°FLo: 18°C | Hi: 88°FHi: 31°C Lo: 65°FLo: 18°C | Lo: 64°FLo: 18°C | Hi: 89°FHi: 32°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 800 AM PDT Mon Aug 17 2026 
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Finnon Reservoir Forecast Discussion
Issued: 1234 PM PDT Sun Aug 16 2026
Key Messages
- Seasonal temperatures and dry conditions continue through the week ahead.
Discussion
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We continue to see clear skies across California this afternoon, with temperatures reaching into the upper 80s to lower 90s for daytime highs. Winds will start to increase this evening around the Delta helping to bring cooler conditions after sunset. Overnight temperatures drop into the upper 50s to lower 60s around the Delta, southern Sacramento Valley, and northern Sa...