Loch Lomond Weather Forecast

    • 61
    • 79

    Sunny

    • 59
    • 79

    Sunny

    • 62
    • 80

    Sunny

    • 64
    • 83

    Sunny

    • 62
    • 84

    Mostly Sunny

    • 60
    • 80

    Mostly Sunny

Today 16 Jul Southern Lake County

Sunny. Highs 80 to 93.

Tonight 16 Jul Southern Lake County

Clear. Lows 52 to 62.

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Loch Lomond Temperature Statistics

July Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (25.5 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 (25.5 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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