Napa Weather Forecast

    • 35
    • 57

    Mostly Cloudy

    • 36
    • 58

    Increasing Clouds

    • 39
    • 58

    Mostly Sunny

    • 40
    • 61

    Mostly Sunny

    • 43
    • 62

    Mostly Sunny

    • 44
    • 63

    Mostly Sunny

    • 44
    • 63

    Mostly Sunny

Today 10 Jan North Bay Interior Valleys

Mostly cloudy. Highs in the 50s. East Winds 5 to 10 Mph.

Tonight 10 Jan North Bay Interior Valleys

Mostly cloudy. Areas of frost after midnight. Lows in the 30s to lower 40s. Northeast Winds 5 to 10 Mph.

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Napa Temperature Statistics

January Temperature

Napa, Napa County Airport (6.2 miles)

  • Lowest 8 January, 2026

    37 °F

  • Average January

    52.8 °F

  • Highest 2 January, 2026

    61 °F

Climate (2021–Present)

Napa, Napa County Airport (6.2 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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