Napa Weather Forecast

    • 37
    • 53

    Mostly Cloudy

    • 37
    • 58

    Partly Sunny

    • 40
    • 58

    Mostly Cloudy

    • 41
    • 57

    Slight Chance Rain

    • 42
    • 62

    Areas Fog

    • 43
    • 61

    Areas Fog

Today 25 Jan North Bay Interior Valleys

Mostly cloudy. Highs in the mid 40s to upper 50s. East Winds 10 to 20 Mph. Becoming 5 to 10 Mph in the afternoon.

Tonight 25 Jan North Bay Interior Valleys

Mostly cloudy. Lows in the 30s to mid 40s. East Winds up to 5 Mph.

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Napa Temperature Statistics

January Temperature

Napa, Napa County Airport (6.2 miles)

  • Lowest 9 January, 2026

    31.6 °F

  • Average January

    49.7 °F

  • Highest 15 January, 2026

    63.6 °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 °F
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