Carquinez Strait - Mare Island Weather Forecast

    • 54
    • 57

    Chance Rain Showers

    • 52
    • 60

    Partly Sunny

    • 53
    • 63

    Mostly Sunny

    • 55
    • 67

    Mostly Sunny

    • 55
    • 69

    Mostly Sunny

    • 53
    • 64

    Mostly Sunny

Today 14 Oct Carquinez Strait and Delta

Cloudy. Rain Showers likely early in the Morning, then a chance of rain Showers in the late morning and afternoon. Highs 55 to 61. Southeast Winds around 10 Mph shifting to the southwest up to 10 Mph in the afternoon. Gusts up to 20 Mph.

Tonight 14 Oct Carquinez Strait and Delta

Cloudy. A chance of rain Showers in the Evening, then a slight chance of rain Showers after midnight. Lows around 53. South Winds up to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Carquinez Strait - Mare Island Temperature Statistics

October Temperature

Napa, Napa County Airport (9.3 miles)

  • Lowest 12 October, 2025

    42.1 °F

  • Average October

    62.1 °F

  • Highest 7 October, 2025

    88 °F

Climate (2020–Present)

Napa, Napa County Airport (9.3 miles)

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  • Average Low 2020–2025

    46.9 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    70.4 °F
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