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

    • 39
    • 60

    Breezy

    • 39
    • 55

    Mostly Cloudy

    • 39
    • 60

    Mostly Sunny

    • 44
    • 60

    Chance Rain

    • 44
    • 57

    Chance Rain

    • 44
    • 63

    Partly Sunny

Today 24 Jan North Bay Interior Valleys

Sunny, breezy. Highs near 60. North Winds 20 to 30 Mph with Gusts to around 50 Mph.

Tonight 24 Jan North Bay Interior Valleys

Clear in the evening then becoming partly cloudy. Breezy. Lows in the lower 30s to mid 40s. North Winds 20 to 30 Mph. Becoming east after midnight.

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

January Temperature

Napa, Napa County Airport (19.9 miles)

  • Lowest 9 January, 2026

    31.6 °F

  • Average January

    49.7 °F

  • Highest 15 January, 2026

    63.6 °F

Climate (2021–Present)

Napa, Napa County Airport (19.9 miles)

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  • Average Low 2021–2026

    47.1 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    70 °F
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