Deer Park Weather Forecast

    • 50
    • 67

    Mostly Cloudy

    • 48
    • 72

    Mostly Sunny

    • 54
    • 69

    Chance Rain

    • 48
    • 63

    Chance Rain

    • 47
    • 61

    Chance Rain

    • 48
    • 64

    Partly Sunny

Today 22 Oct North Bay Interior Valleys

Mostly cloudy. Highs in the 60s to lower 70s. West Winds 10 to 20 Mph.

Tonight 22 Oct North Bay Interior Valleys

Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 40s to mid 50s. West Winds 10 to 15 Mph.

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Deer Park Temperature Statistics

October Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (18.6 miles)

  • Lowest 12 October, 2025

    42.1 °F

  • Average October

    59.8 °F

  • Highest 7 October, 2025

    89.1 °F

Climate (2020–Present)

Santa Rosa, Santa Rosa Sonoma County Airport (18.6 miles)

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  • Average Low 2020–2025

    45.3 °F

  • Average 2020–2025

    57.8 °F

  • Average High 2020–2025

    72.6 °F
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