Deer Park Weather Forecast

    • 42
    • 52

    Dense Fog

    • 43
    • 61

    Dense Fog

    • 46
    • 64

    Patchy Fog

    • 47
    • 67

    Mostly Sunny

    • 45
    • 68

    Mostly Sunny

    • 44
    • 67

    Mostly Sunny

    • 44
    • 66

    Partly Sunny

Today 7 Dec North Bay Interior Valleys

Partly cloudy. Highs in the mid 40s to lower 60s. South Winds up to 5 Mph.

Tonight 7 Dec North Bay Interior Valleys

Mostly clear in the evening then becoming partly cloudy. Patchy fog in the evening. Areas of dense fog after midnight. Lows in the 30s to upper 40s. Northeast Winds up to 5 Mph.

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  • Temperature Real-Time

Deer Park Temperature Statistics

December Temperature

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

  • Lowest 4 December, 2025

    34 °F

  • Average December

    45.9 °F

  • Highest 3 December, 2025

    68 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    45.5 °F

  • Average 2020–2025

    57.9 °F

  • Average High 2020–2025

    72.5 °F
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