Trancas Crossing Park Weather Forecast

    • 52
    • 79

    Increasing Clouds

    • 51
    • 67

    Mostly Cloudy

    • 49
    • 71

    Partly Sunny

    • 55
    • 70

    Chance Rain

    • 49
    • 65

    Chance Rain

    • 48
    • 62

    Chance Rain

Today 21 Oct North Bay Interior Valleys

Sunny. Highs in the 70s to lower 80s. East Winds 5 to 10 Mph. Becoming south 10 to 15 Mph in the afternoon.

Tonight 21 Oct North Bay Interior Valleys

Mostly clear in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows in the 40s to upper 50s. Southwest Winds 10 to 15 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Trancas Crossing Park Temperature Statistics

October Temperature

Napa, Napa County Airport (8.1 miles)

  • Lowest 12 October, 2025

    42.1 °F

  • Average October

    60.3 °F

  • Highest 7 October, 2025

    88 °F

Climate (2020–Present)

Napa, Napa County Airport (8.1 miles)

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

  • Average Low 2020–2025

    46.9 °F

  • Average 2020–2025

    58 °F

  • Average High 2020–2025

    70.3 °F
Get WillyWeather+ to remove ads