Napa Weather Forecast

    • 48
    • 71

    Increasing Clouds

    • 48
    • 73

    Mostly Sunny

    • 51
    • 75

    Partly Sunny

    • 50
    • 72

    Partly Sunny

    • 50
    • 73

    Mostly Sunny

    • 49
    • 77

    Mostly Sunny

    • 51
    • 80

    Mostly Sunny

Today 25 May North Bay Interior Valleys

Partly cloudy. A slight chance of drizzle. Highs in the upper 50s to mid 70s. West Winds 10 to 20 Mph.

Tonight 25 May North Bay Interior Valleys

Mostly cloudy. A slight chance of drizzle. Lows in the mid 40s to lower 50s. West Winds 10 to 20 Mph.

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Napa Temperature Statistics

May Temperature

Napa, Napa County Airport (6.2 miles)

  • Lowest 19 May, 2026

    44.7 °F

  • Average May

    62.2 °F

  • Highest 19 May, 2026

    89.7 °F

Climate (2021–Present)

Napa, Napa County Airport (6.2 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    58.4 °F

  • Average High 2021–2026

    70.2 °F
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