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City of Fairfield, CAFairfield, CA Weather Forecast
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| TODAY | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
 |  | | | | | | | | | | |
| Sunny | Clear | Sunny | Clear | Sunny | Clear | Sunny | Clear | Mostly Clear | Mostly Clear | Clear | Mostly Sunny |
| Hi: 88°FHi: 31°C | Lo: 59°FLo: 15°C | Hi: 80°FHi: 27°C | Lo: 56°FLo: 13°C | Hi: 82°FHi: 28°C | Lo: 59°FLo: 15°C | Hi: 87°FHi: 31°C | Lo: 58°FLo: 14°C | Hi: 81°FHi: 27°C Lo: 57°FLo: 14°C | Hi: 81°FHi: 27°C Lo: 57°FLo: 14°C | Lo: 57°FLo: 14°C | Hi: 80°FHi: 27°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 201 AM PDT Fri Sep 11 2026 
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Issued: 1230 PM PDT Thu Sep 10 2026
Key Messages
- Hot, dry and breezy through Thursday, with areas of Moderate HeatRisk and elevated fire weather conditions
- Notable cool down over the weekend, with near to below normal temperatures expected
- Breezy onshore winds Thursday-Saturday followed by gustier north winds Saturday night-Monday with elevated to critical fire weather conditions over the weekend
Discussion
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Today-Friday:
Mid to high level clouds are once again passing through portions of interior NorCal on GOES-West visible satelli...