Lake Berryessa Weather Forecast

    • 70
    • 94

    Sunny

    • 67
    • 96

    Mostly Sunny

    • 69
    • 97

    Hot

    • 67
    • 94

    Mostly Sunny

    • 64
    • 92

    Mostly Sunny

    • 65
    • 91

    Mostly Sunny

Today 20 Aug North Bay Interior Mountains

Sunny. Highs in the lower 80s to mid 90s. North Winds 5 to 10 Mph. Becoming west 10 to 15 Mph in the afternoon.

Tonight 20 Aug North Bay Interior Mountains

Clear. Lows in the mid 60s to lower 70s. Northwest Winds 10 to 20 Mph. Becoming north 5 to 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Berryessa Temperature Statistics

August Temperature

Vacaville Nut Tree Airport (20.5 miles)

  • Lowest 18 August, 2025

    53.1 °F

  • Average August

    77.3 °F

  • Highest 9 August, 2025

    103.6 °F

Climate (2020–Present)

Vacaville Nut Tree Airport (20.5 miles)

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  • Average Low 2020–2025

    49 °F

  • Average 2020–2025

    62.9 °F

  • Average High 2020–2025

    77.2 °F
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