Napa River - Maxwell Bridge Weather Forecast

    • 47
    • 79

    Mostly Sunny

    • 49
    • 78

    Partly Sunny

    • 54
    • 80

    Mostly Sunny

    • 57
    • 85

    Mostly Cloudy

    • 58
    • 88

    Mostly Sunny

    • 59
    • 88

    Mostly Sunny

Today 12 Mar North Bay Interior Valleys

Sunny. Patchy dense fog in the morning. Highs in the 70s to lower 80s. Northwest Winds 5 to 10 Mph.

Tonight 12 Mar North Bay Interior Valleys

Partly cloudy in the evening then becoming mostly clear. Lows in the 40s to mid 50s. Northwest Winds 5 to 10 Mph.

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Napa River - Maxwell Bridge Temperature Statistics

March Temperature

Napa, Napa County Airport (5 miles)

  • Lowest 5 March, 2026

    37.9 °F

  • Average March

    58.1 °F

  • Highest 7 March, 2026

    77 °F

Climate (2021–Present)

Napa, Napa County Airport (5 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    58.2 °F

  • Average High 2021–2026

    70.1 °F
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