Trancas Crossing Park Weather Forecast

    • 58
    • 92

    Mostly Sunny

    • 54
    • 87

    Increasing Clouds

    • 53
    • 81

    Partly Sunny

    • 54
    • 81

    Partly Sunny

    • 55
    • 79

    Mostly Cloudy

    • 54
    • 76

    Mostly Cloudy

    • 54
    • 80

    Partly Sunny

Today 15 Jul North Bay Interior Valleys

Sunny. Highs in the 80s to 90s. West Winds 10 to 20 Mph.

Tonight 15 Jul North Bay Interior Valleys

Mostly clear. Lows in the 50s to mid 60s. West Winds 10 to 20 Mph.

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Trancas Crossing Park Temperature Statistics

July Temperature

Napa, Napa County Airport (8.1 miles)

  • Lowest 11 July, 2026

    48.7 °F

  • Average July

    64.8 °F

  • Highest 13 July, 2026

    88 °F

Climate (2021–2026)

Napa, Napa County Airport (8.1 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    58.4 °F

  • Average High 2021–2026

    70.2 °F
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