Carquinez Strait - Mare Island Weather Forecast

    • 42
    • 55

    Increasing Clouds

    • 41
    • 52

    Decreasing Clouds

    • 44
    • 53

    Mostly Cloudy

    • 51
    • 53

    Rain Likely

    • 52
    • 59

    Rain Likely

    • 52
    • 59

    Chance Rain

    • 50
    • 58

    Rain Likely

Today 28 Jan Carquinez Strait and Delta

Widespread frost in the morning. Sunny. Highs around 59. Light Winds.

Tonight 28 Jan Carquinez Strait and Delta

Clear. Areas of frost late in the night. Lows 32 to 39. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Carquinez Strait - Mare Island Temperature Statistics

January Temperature

Napa, Napa County Airport (9.3 miles)

  • Lowest 22 January, 2025

    28.9 °F

  • Average January

    49.2 °F

  • Highest 7 January, 2025

    70.6 °F

Climate (2020–Present)

Napa, Napa County Airport (9.3 miles)

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  • Average Low 2020–2025

    47 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    70.7 °F
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