Hidden Valley Lake Weather Forecast

    • 50
    • 83

    Mostly Sunny

    • 51
    • 83

    Mostly Sunny

    • 51
    • 83

    Mostly Sunny

    • 53
    • 83

    Mostly Sunny

    • 56
    • 88

    Sunny

    • 56
    • 92

    Sunny

Today 23 Jul Southern Lake County

Mostly sunny. Highs 75 to 86.

Tonight 23 Jul Southern Lake County

Mostly clear. Lows 50 to 60.

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Hidden Valley Lake Temperature Statistics

July Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (24.9 miles)

  • Lowest 5 July, 2025

    45.6 °F

  • Average July

    65.7 °F

  • Highest 10 July, 2025

    93.7 °F

Climate (2020–Present)

Santa Rosa, Santa Rosa Sonoma County Airport (24.9 miles)

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  • Average Low 2020–2025

    45.3 °F

  • Average 2020–2025

    57.8 °F

  • Average High 2020–2025

    72.8 °F
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