Trancas Crossing Park Weather Forecast

    • 55
    • 76

    Increasing Clouds

    • 54
    • 69

    Increasing Clouds

    • 53
    • 68

    Patchy Fog

    • 53
    • 73

    Patchy Fog

    • 53
    • 75

    Mostly Cloudy

    • 54
    • 76

    Mostly Cloudy

    • 56
    • 78

    Mostly Cloudy

Today 12 Aug North Bay Interior Valleys

Mostly cloudy. Highs in the upper 60s to lower 80s. Southwest Winds 10 to 15 Mph.

Tonight 12 Aug North Bay Interior Valleys

Mostly cloudy. Patchy fog. Lows in the 50s. South Winds 10 to 15 Mph.

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Trancas Crossing Park Temperature Statistics

August Temperature

Napa, Napa County Airport (8.1 miles)

  • Lowest 6 August, 2026

    51.7 °F

  • Average August

    67.2 °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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