Napa River - White Slough Entrance Weather Forecast

    • 46
    • 65

    Increasing Clouds

    • 51
    • 66

    Increasing Clouds

    • 52
    • 65

    Mostly Cloudy

    • 51
    • 64

    Mostly Cloudy

    • 48
    • 67

    Mostly Sunny

    • 51
    • 69

    Partly Sunny

    • 52
    • 68

    Partly Sunny

Today 21 Feb Carquinez Strait and Delta

Partly cloudy in the morning then clearing. Highs around 65. Light Winds.

Tonight 21 Feb Carquinez Strait and Delta

Mostly clear. Lows 40 to 45. Light Winds.

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Napa River - White Slough Entrance Temperature Statistics

February Temperature

Napa, Napa County Airport (5 miles)

  • Lowest 10 February, 2025

    29.8 °F

  • Average February

    49.2 °F

  • Highest 18 February, 2025

    62.7 °F

Climate (2020–Present)

Napa, Napa County Airport (5 miles)

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  • Average Low 2020–2025

    47 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    70.7 °F
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