Westwood Hills Park Weather Forecast

    • 40
    • 49

    Decreasing Clouds

    • 42
    • 57

    Dense Fog

    • 43
    • 60

    Areas Fog

    • 44
    • 63

    Areas Fog

    • 43
    • 64

    Areas Fog

    • 42
    • 63

    Mostly Sunny

    • 43
    • 62

    Areas Fog

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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Westwood Hills Park Temperature Statistics

December Temperature

Napa, Napa County Airport (6.2 miles)

  • Lowest 2 December, 2025

    37 °F

  • Average December

    46.4 °F

  • Highest 3 December, 2025

    66 °F

Climate (2020–Present)

Napa, Napa County Airport (6.2 miles)

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  • Average Low 2020–2025

    47 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    70.2 °F
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