Mare Island Shoreline Heritage Preserve Weather Forecast

    • 53
    • 63

    Becoming Sunny

    • 53
    • 64

    Partly Sunny

    • 53
    • 64

    Partly Sunny

    • 53
    • 67

    Sunny

    • 55
    • 70

    Mostly Sunny

    • 54
    • 65

    Mostly Sunny

    • 54
    • 67

    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 19 May, 2026

    44.7 °F

  • Average May

    62.3 °F

  • Highest 19 May, 2026

    89.7 °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

    58.4 °F

  • Average High 2021–2026

    70.2 °F
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