Napa Weather Forecast

    • 55
    • 84

    Increasing Clouds

    • 55
    • 84

    Increasing Clouds

    • 55
    • 84

    Mostly Sunny

    • 56
    • 85

    Mostly Sunny

    • 57
    • 87

    Mostly Sunny

    • 56
    • 87

    Mostly Sunny

    • 56
    • 87

    Mostly Sunny

Today 24 Jul North Bay Interior Valleys

Sunny. Highs in the mid 70s to upper 80s. West Winds 10 to 20 Mph.

Tonight 24 Jul North Bay Interior Valleys

Mostly clear. Lows in the 50s. West Winds 10 to 20 Mph.

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Napa Temperature Statistics

July Temperature

Napa, Napa County Airport (6.2 miles)

  • Lowest 11 July, 2026

    48.7 °F

  • Average July

    66.7 °F

  • Highest 13 July, 2026

    89.7 °F

Climate (2021–2026)

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

    70.3 °F
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