Trancas Crossing Park Weather Forecast

    • 52
    • 83

    Becoming Sunny

    • 49
    • 76

    Mostly Sunny

    • 52
    • 80

    Mostly Sunny

    • 51
    • 80

    Mostly Sunny

    • 52
    • 78

    Partly Sunny

    • 53
    • 79

    Mostly Sunny

    • 56
    • 86

    Mostly Sunny

Today 3 Jul North Bay Interior Valleys

Partly cloudy. Breezy. Highs in the 70s to 80s. West Winds 20 to 30 Mph.

Tonight 3 Jul North Bay Interior Valleys

Mostly clear. Breezy. Lows in the upper 40s to mid 50s. West Winds 20 to 30 Mph.

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Trancas Crossing Park Temperature Statistics

July Temperature

Napa, Napa County Airport (8.1 miles)

  • Lowest 1 July, 2025

    54 °F

  • Average July

    61.5 °F

  • Highest 1 July, 2025

    72 °F

Climate (2020–Present)

Napa, Napa County Airport (8.1 miles)

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  • Average Low 2020–2025

    46.9 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    70.6 °F
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