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

    • 43
    • 67

    Increasing Clouds

    • 48
    • 68

    Chance Rain Showers

    • 47
    • 69

    Chance Rain Showers

    • 44
    • 68

    Areas Fog

    • 43
    • 70

    Mostly Sunny

    • 44
    • 70

    Slight Chance Rain

Today 19 Oct North Bay Interior Valleys

Sunny late in the morning then becoming partly cloudy. Highs in the upper 50s to lower 70s. West Winds 10 to 20 Mph.

Tonight 19 Oct North Bay Interior Valleys

Cloudy. Areas of fog after midnight. Lows in the upper 30s to lower 50s. West Winds 10 to 15 Mph decreasing to up to 5 Mph after midnight.

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

October Temperature

Napa, Napa County Airport (19.9 miles)

  • Lowest 13 October, 2026

    38.6 °F

  • Average October

    66.1 °F

  • Highest 3 October, 2026

    96.7 °F

Climate (2021–2026)

Napa, Napa County Airport (19.9 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    58.6 °F

  • Average High 2021–2026

    70.3 °F
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