Napa River - Napa Weather Forecast

    • 55
    • 71

    Increasing Clouds

    • 55
    • 78

    Becoming Sunny

    • 55
    • 79

    Partly Sunny

    • 54
    • 79

    Partly Sunny

    • 54
    • 78

    Partly Sunny

    • 54
    • 79

    Partly Sunny

    • 54
    • 78

    Partly Sunny

Today 21 Aug North Bay Interior Valleys

Sunny, haze. Highs in the upper 60s to lower 80s. Southwest Winds 10 to 20 Mph.

Tonight 21 Aug North Bay Interior Valleys

Mostly clear in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows in the upper 40s to lower 60s. Southwest Winds 10 to 20 Mph.

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Napa River - Napa Temperature Statistics

August Temperature

Napa, Napa County Airport (6.2 miles)

  • Lowest 18 August, 2018

    46.9 °F

  • Average August

    63.2 °F

  • Highest 4 August, 2018

    89.1 °F

Climate (2010–Present)

Napa, Napa County Airport (6.2 miles)

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  • Average Low 2010–Present

    47.2 °F

  • Average 2010–Present

    57.4 °F

  • Average High 2010–Present

    69.8 °F
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