Napa County Airport Weather Forecast

    • 56
    • 77

    Increasing Clouds

    • 57
    • 81

    Decreasing Clouds

    • 60
    • 83

    Partly Sunny

    • 59
    • 82

    Partly Sunny

    • 55
    • 78

    Partly Sunny

    • 55
    • 77

    Partly Sunny

    • 54
    • 75

    Partly Sunny

Today 24 Aug North Bay Interior Valleys

Sunny. Highs in the lower 70s to mid 80s. Southwest Winds 10 to 20 Mph.

Tonight 24 Aug North Bay Interior Valleys

Partly cloudy late in the evening then becoming mostly cloudy. Lows in the 50s. Southwest Winds 5 to 15 Mph.

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Napa County Airport Temperature Statistics

August Temperature

Napa, Napa County Airport (0 miles)

  • Lowest 22 August, 2026

    51.1 °F

  • Average August

    66.3 °F

  • Highest 2 August, 2026

    86.6 °F

Climate (2021–2026)

Napa, Napa County Airport (0 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    58.5 °F

  • Average High 2021–2026

    70.3 °F
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