Napa Weather Forecast

    • 50
    • 56

    Rain Showers

    • 45
    • 53

    Rain Showers

    • 44
    • 51

    Rain Showers

    • 41
    • 54

    Chance Rain Showers

    • 37
    • 53

    Chance Rain Showers

    • 35
    • 52

    Mostly Sunny

    • 35
    • 52

    Mostly Sunny

Today 3 Jan North Bay Interior Valleys

Breezy. Showers and a slight chance of Thunderstorms. Highs in the 50s. South Winds 20 to 30 Mph.

Tonight 3 Jan North Bay Interior Valleys

Showers and a slight chance of Thunderstorms. Lows near 50. South Winds 10 to 20 Mph with Gusts to around 35 Mph.

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Napa Temperature Statistics

January Temperature

Napa, Napa County Airport (6.2 miles)

  • Lowest 1 January, 2026

    48.9 °F

  • Average January

    53.4 °F

  • Highest 1 January, 2026

    57 °F

Climate (2021–Present)

Napa, Napa County Airport (6.2 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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