Lake Sonoma Weather Forecast

    • 56
    • 85

    Increasing Clouds

    • 60
    • 85

    Mostly Cloudy

    • 62
    • 83

    Mostly Cloudy

    • 63
    • 87

    Partly Sunny

    • 61
    • 87

    Mostly Sunny

    • 58
    • 85

    Mostly Sunny

Today 18 Jul Sonoma Coastal Range

Sunny. Highs in the lower 80s. Light Winds. Becoming west around 5 Mph in the afternoon.

Tonight 18 Jul Sonoma Coastal Range

Mostly clear in the evening then becoming partly cloudy. Lows in the mid 50s. Light Winds.

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  • Temperature Real-Time

Lake Sonoma Temperature Statistics

July Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (21.1 miles)

  • Lowest 1 July, 2026

    46.4 °F

  • Average July

    67.7 °F

  • Highest 14 July, 2026

    97.6 °F

Climate (2021–2026)

Santa Rosa, Santa Rosa Sonoma County Airport (21.1 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    58.5 °F

  • Average High 2021–2026

    72.8 °F
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