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

    • 44
    • 77

    Mostly Sunny

    • 49
    • 77

    Mostly Sunny

    • 51
    • 78

    Mostly Sunny

    • 49
    • 72

    Rain Likely

    • 48
    • 70

    Rain Showers Likely

    • 44
    • 69

    Chance Rain

    • 43
    • 66

    Chance Rain

Today 6 Apr North Bay Interior Valleys

Sunny. Highs in the mid 60s to upper 70s. West Winds 5 to 15 Mph.

Tonight 6 Apr North Bay Interior Valleys

Mostly clear in the evening then becoming partly cloudy. Patchy fog after midnight. Lows in the 40s to lower 50s. West Winds 10 to 15 Mph.

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

April Temperature

Napa, Napa County Airport (19.9 miles)

  • Lowest 3 April, 2026

    38.6 °F

  • Average April

    58.3 °F

  • Highest 4 April, 2026

    80.1 °F

Climate (2021–Present)

Napa, Napa County Airport (19.9 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    58.3 °F

  • Average High 2021–2026

    70.2 °F
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