Weather WorldMiddlefield Reservoir, CA Weather Forecast
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Middlefield Reservoir Weather Forecast
| REST OF TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY |
 |  |  |  |  |  | | | | | | |
| Mostly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Cloudy | Clear | Sunny | Clear | Mostly Clear | Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Lo: 55°FLo: 13°C | Hi: 66°FHi: 19°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 85°FHi: 29°C | Lo: 59°FLo: 15°C | Hi: 76°FHi: 24°C Lo: 59°FLo: 15°C | Hi: 76°FHi: 24°C Lo: 59°FLo: 15°C | Hi: 76°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 76°FHi: 24°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 902 PM PDT Sat Sep 26 2026 
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Issued: 256 AM PDT Sun Sep 27 2026
Key Messages
Updated at 1204 PM PDT Sat Sep 26 2026- Cooler conditions through Sunday
- Warmer temperatures return Tuesday through next week
Aviation
... (06Z TAFS) Issued at 848 PM PDT Sat Sep 26 2026
A mix of VFR and MVFR as the marine layer begins to gradually strengthen out ahead of an advancing upper trough. Moderate confidence that a majority of the terminals see MVFR/IFR ceilings, with plenty of uncertainty in the extent and exact timing for the North Bay and Bay Area sites.
Vicinity of SFO...The...