Mare Island Shoreline Heritage Preserve Weather Forecast

    • 54
    • 72

    Mostly Sunny

    • 54
    • 70

    Increasing Clouds

    • 55
    • 76

    Partly Sunny

    • 54
    • 71

    Partly Sunny

    • 53
    • 68

    Mostly Sunny

    • 54
    • 70

    Mostly Sunny

    • 53
    • 72

    Mostly Sunny

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mare Island Shoreline Heritage Preserve Temperature Statistics

May Temperature

Napa, Napa County Airport (8.7 miles)

  • Lowest 4 May, 2026

    46.7 °F

  • Average May

    59.1 °F

  • Highest 6 May, 2026

    74.6 °F

Climate (2021–Present)

Napa, Napa County Airport (8.7 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    58.3 °F

  • Average High 2021–2026

    70.2 °F
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