Weather WorldVacaville High School, CA Weather Forecast
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Vacaville High School Weather Forecast
| TONIGHT | COLUMBUS DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY | SATURDAY | SUNDAY |
 |  | | | | | | | | | |
| Mostly Clear | Sunny | Clear | Sunny | Clear | Sunny | Clear | Clear | Clear | Clear | Sunny |
| Lo: 50°FLo: 10°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 76°FHi: 24°C | Lo: 52°FLo: 11°C | Hi: 79°FHi: 26°C | Lo: 54°FLo: 12°C | Hi: 87°FHi: 31°C Lo: 58°FLo: 14°C | Hi: 87°FHi: 31°C Lo: 58°FLo: 14°C | Hi: 87°FHi: 31°C Lo: 58°FLo: 14°C | Hi: 82°FHi: 28°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 202 PM PDT Sun Oct 11 2026 
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Issued: 139 PM PDT Sun Oct 11 2026
Key Messages
- Red Flag Warning in effect until 5 AM Monday due to gusty north winds and low relative humidity for Northern Sacramento Valley and adjacent foothills.
- Cooler temperatures, mountain showers and isolated thunderstorms today and Monday.
- Potential for first measurable snow of the season in the Sierra late tonight- Monday, south of US 50 and above 6500 feet.
- Dry weather and below-normal temperatures on Tuesday, followed by drying and warming trend mid- to late next week.
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