Napa River - Napa Valley Marina Weather Forecast

    • 56
    • 80

    Becoming Sunny

    • 55
    • 80

    Mostly Sunny

    • 54
    • 78

    Mostly Sunny

    • 56
    • 80

    Mostly Sunny

    • 58
    • 85

    Mostly Sunny

    • 59
    • 84

    Mostly Sunny

Today 2 Aug North Bay Interior Valleys

Partly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the mid 70s to upper 80s. Southwest Winds 10 to 20 Mph.

Tonight 2 Aug North Bay Interior Valleys

Mostly clear. Lows in the 50s. West Winds 5 to 15 Mph.

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Napa River - Napa Valley Marina Temperature Statistics

August Temperature

Napa, Napa County Airport (1.9 miles)

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  • Average August

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Climate (2020–Present)

Napa, Napa County Airport (1.9 miles)

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  • Average Low 2020–2025

    46.9 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    70.5 °F
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