Vacaville Weather Forecast

    • 62
    • 90

    Sunny

    • 59
    • 84

    Becoming Sunny

    • 61
    • 83

    Sunny

    • 60
    • 90

    Sunny

    • 60
    • 86

    Mostly Sunny

    • 60
    • 85

    Mostly Sunny

    • 60
    • 86

    Mostly Sunny

Today 11 Sep Central Solano County Including Fairfield and Vacaville

Sunny. Highs 84 to 90. Southwest Winds 10 to 20 Mph with Gusts to around 30 Mph.

Tonight 11 Sep Central Solano County Including Fairfield and Vacaville

Clear. Lows around 59. Southwest Winds 10 to 15 Mph with Gusts to around 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Vacaville Temperature Statistics

September Temperature

Vacaville Nut Tree Airport (1.9 miles)

  • Lowest 5 September, 2026

    49.6 °F

  • Average September

    71.3 °F

  • Highest 9 September, 2026

    102.9 °F

Climate (2021–2026)

Vacaville Nut Tree Airport (1.9 miles)

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  • Average Low 2021–2026

    49.3 °F

  • Average 2021–2026

    62.9 °F

  • Average High 2021–2026

    76.8 °F
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