Trancas Crossing Park Weather Forecast

    • 56
    • 77

    Increasing Clouds

    • 54
    • 83

    Becoming Sunny

    • 56
    • 85

    Mostly Sunny

    • 56
    • 87

    Mostly Sunny

    • 57
    • 87

    Mostly Sunny

    • 57
    • 87

    Mostly Sunny

    • 57
    • 87

    Mostly Sunny

Today 22 Jul North Bay Interior Valleys

Partly cloudy. Highs in the mid 60s to lower 80s. Southwest Winds 10 to 20 Mph.

Tonight 22 Jul North Bay Interior Valleys

Mostly clear in the evening then becoming partly cloudy. Patchy fog after midnight. Lows in the 50s. West Winds 10 to 20 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Trancas Crossing Park Temperature Statistics

July Temperature

Napa, Napa County Airport (8.1 miles)

  • Lowest 11 July, 2026

    48.7 °F

  • Average July

    66 °F

  • Highest 13 July, 2026

    89.7 °F

Climate (2021–2026)

Napa, Napa County Airport (8.1 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    58.4 °F

  • Average High 2021–2026

    70.2 °F
Get WillyWeather+ to remove ads