Trancas Crossing Park Weather Forecast

    • 60
    • 87

    Increasing Clouds

    • 54
    • 79

    Mostly Cloudy

    • 53
    • 79

    Mostly Sunny

    • 52
    • 77

    Partly Sunny

    • 51
    • 72

    Partly Sunny

    • 52
    • 74

    Partly Sunny

Today 27 Aug North Bay Interior Valleys

Sunny in the morning then becoming partly cloudy. Highs in the upper 70s to mid 90s. Southwest Winds 10 to 20 Mph.

Tonight 27 Aug North Bay Interior Valleys

Mostly cloudy. A slight chance of Showers after midnight. Lows in the mid 50s to lower 60s. Southwest Winds 10 to 15 Mph.

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Trancas Crossing Park Temperature Statistics

August Temperature

Napa, Napa County Airport (8.1 miles)

  • Lowest 22 August, 2026

    50.6 °F

  • Average August

    66.3 °F

  • Highest 2 August, 2026

    86.6 °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

    58.5 °F

  • Average High 2021–2026

    70.3 °F
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