Trancas Crossing Park Weather Forecast

    • 55
    • 85

    Increasing Clouds

    • 56
    • 87

    Becoming Sunny

    • 58
    • 90

    Partly Sunny

    • 58
    • 92

    Mostly Sunny

    • 56
    • 91

    Mostly Sunny

    • 56
    • 84

    Partly Sunny

    • 56
    • 83

    Partly Sunny

Today 5 Aug North Bay Interior Valleys

Sunny. Highs in the mid 70s to upper 80s. Southwest Winds 10 to 15 Mph.

Tonight 5 Aug North Bay Interior Valleys

Mostly clear in the evening then becoming mostly cloudy. Areas of fog after midnight. Lows in the 40s to upper 50s. Southwest Winds 5 to 15 Mph.

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  • Temperature Real-Time

Trancas Crossing Park Temperature Statistics

August Temperature

Napa, Napa County Airport (8.1 miles)

  • Lowest 3 August, 2026

    55.9 °F

  • Average August

    70 °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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