Trancas Crossing Park Weather Forecast

    • 37
    • 58

    Decreasing Clouds

    • 39
    • 59

    Mostly Sunny

    • 40
    • 61

    Mostly Sunny

    • 43
    • 62

    Mostly Sunny

    • 44
    • 63

    Mostly Sunny

    • 45
    • 64

    Mostly Sunny

Today 11 Jan North Bay Interior Valleys

Mostly cloudy late in the morning then becoming partly cloudy. Highs in the mid 50s to lower 60s. Northeast Winds 5 to 10 Mph. Becoming west in the afternoon.

Tonight 11 Jan North Bay Interior Valleys

Partly cloudy in the evening then becoming mostly clear. Patchy fog after midnight. Lows in the mid 30s to upper 40s. North Winds up to 5 Mph.

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Trancas Crossing Park Temperature Statistics

January Temperature

Napa, Napa County Airport (8.1 miles)

  • Lowest 9 January, 2026

    32 °F

  • Average January

    51.9 °F

  • Highest 2 January, 2026

    61 °F

Climate (2021–Present)

Napa, Napa County Airport (8.1 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    70.1 °F
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