Napa County Regional Park District - Lake Hennessey City Recreation Area Weather Forecast

    • 50
    • 88

    Becoming Sunny

    • 47
    • 81

    Mostly Sunny

    • 49
    • 85

    Mostly Sunny

    • 50
    • 87

    Mostly Sunny

    • 50
    • 85

    Mostly Sunny

    • 52
    • 84

    Mostly Sunny

    • 56
    • 91

    Sunny

Today 3 Jul North Bay Interior Valleys

Partly cloudy. Breezy. Highs in the 70s to 80s. West Winds 20 to 30 Mph.

Tonight 3 Jul North Bay Interior Valleys

Mostly clear. Breezy. Lows in the upper 40s to mid 50s. West Winds 20 to 30 Mph.

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Napa County Regional Park District - Lake Hennessey City Recreation Area Temperature Statistics

July Temperature

Napa, Napa County Airport (19.9 miles)

  • Lowest 1 July, 2025

    54 °F

  • Average July

    61.5 °F

  • Highest 1 July, 2025

    72 °F

Climate (2020–Present)

Napa, Napa County Airport (19.9 miles)

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  • Average Low 2020–2025

    46.9 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    70.6 °F
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