Napa River - Napa Valley Marina Weather Forecast

    • 41
    • 63

    Mostly Cloudy

    • 42
    • 63

    Mostly Cloudy

    • 41
    • 63

    Partly Sunny

    • 42
    • 63

    Mostly Sunny

    • 42
    • 64

    Mostly Sunny

    • 42
    • 65

    Mostly Sunny

Today 30 Jan North Bay Interior Valleys

Mostly cloudy in the morning then becoming partly cloudy. Patchy fog in the morning. Highs in the 50s to upper 60s. Northeast Winds 5 to 10 Mph. Becoming east in the afternoon.

Tonight 30 Jan North Bay Interior Valleys

Partly cloudy in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows in the upper 30s to lower 50s. East Winds 5 to 10 Mph.

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Napa River - Napa Valley Marina Temperature Statistics

January Temperature

Napa, Napa County Airport (1.9 miles)

  • Lowest 9 January, 2026

    31.6 °F

  • Average January

    50 °F

  • Highest 24 January, 2026

    67.6 °F

Climate (2021–Present)

Napa, Napa County Airport (1.9 miles)

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  • Average Low 2021–2026

    47.1 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    70.1 °F
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