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Vacaville High School Weather Forecast
| TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | THURSDAY |
 |  |  |  | | | | | | | | |
| Chance of Rain | Chance of Rain | Mostly Clear | Sunny | Clear | Sunny | Clear | Mostly Sunny | Clear | Mostly Clear | Mostly Clear | Mostly Clear |
| Lo: 65°FLo: 18°C | Hi: 84°FHi: 29°C | Lo: 58°FLo: 14°C | Hi: 83°FHi: 28°C | Lo: 56°FLo: 13°C | Hi: 85°FHi: 29°C | Lo: 57°FLo: 14°C | Hi: 77°FHi: 25°C | Lo: 56°FLo: 13°C | Hi: 81°FHi: 27°C Lo: 56°FLo: 13°C | Hi: 81°FHi: 27°C Lo: 56°FLo: 13°C | Hi: 81°FHi: 27°C Lo: 56°FLo: 13°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1132 PM PDT Thu Aug 27 2026 
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Issued: 1222 PM PDT Thu Aug 27 2026
Key Messages
- Seasonably warm high temperatures continue today with a cooling trend from Friday onward.
- Elevated Fire Weather conditions from dry conditions and breezy winds through this evening for portions of the Valley and foothills.
- Shower and isolated thunderstorm chances arrive late today into Friday, generally from Interstate 80 southward.
- There is high uncertainty in exact details, but unsettled weather and precipitation chances look to return by mid to late next week.
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