Lake Berryessa Weather Forecast

    • 42
    • 65

    Mostly Sunny

    • 49
    • 62

    Mostly Cloudy

    • 49
    • 62

    Mostly Cloudy

    • 46
    • 64

    Partly Sunny

    • 46
    • 62

    Mostly Sunny

    • 45
    • 61

    Partly Sunny

    • 45
    • 59

    Mostly Cloudy

Today 19 Jan North Bay Interior Mountains

Sunny. Highs in the 60s. North Winds around 5 Mph.

Tonight 19 Jan North Bay Interior Mountains

Mostly clear in the evening then becoming partly cloudy. Lows in the lower 40s to mid 50s. North Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Berryessa Temperature Statistics

January Temperature

Vacaville Nut Tree Airport (20.5 miles)

  • Lowest 10 January, 2026

    33.1 °F

  • Average January

    48.6 °F

  • Highest 15 January, 2026

    68 °F

Climate (2021–Present)

Vacaville Nut Tree Airport (20.5 miles)

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  • Average Low 2021–2026

    49.2 °F

  • Average 2021–2026

    62.8 °F

  • Average High 2021–2026

    76.8 °F
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