Carquinez Strait - Mare Island Weather Forecast

    • 56
    • 75

    Mostly Sunny

    • 58
    • 77

    Mostly Sunny

    • 54
    • 70

    Mostly Sunny

    • 54
    • 70

    Mostly Sunny

    • 56
    • 69

    Mostly Cloudy

    • 55
    • 70

    Mostly Sunny

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Carquinez Strait - Mare Island Temperature Statistics

June Temperature

Napa, Napa County Airport (9.3 miles)

  • Lowest 1 June, 2026

    50.6 °F

  • Average June

    63.4 °F

  • Highest 1 June, 2026

    83.6 °F

Climate (2021–Present)

Napa, Napa County Airport (9.3 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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