Vacaville Weather Forecast

    • 46
    • 55

    Rain

    • 41
    • 57

    Partly Sunny

    • 42
    • 59

    Mostly Cloudy

    • 44
    • 59

    Mostly Cloudy

    • 44
    • 60

    Mostly Cloudy

    • 46
    • 59

    Chance Rain

    • 44
    • 60

    Partly Sunny

Today 27 Jan Southern Sacramento Valley

Areas of fog. Locally dense in the morning. Patchy dense fog early in the afternoon. Mostly cloudy. Highs 52 to 60. Light Winds.

Tonight 27 Jan Southern Sacramento Valley

Mostly cloudy. A chance of rain until early Morning, then a slight chance of rain late in the night. Patchy fog late in the night. Lows around 46. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Vacaville Temperature Statistics

January Temperature

Vacaville Nut Tree Airport (1.9 miles)

  • Lowest 10 January, 2026

    32.6 °F

  • Average January

    49.3 °F

  • Highest 15 January, 2026

    69.7 °F

Climate (2021–Present)

Vacaville Nut Tree Airport (1.9 miles)

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  • Average Low 2021–2026

    49.2 °F

  • Average 2021–2026

    62.9 °F

  • Average High 2021–2026

    76.8 °F
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