South Slough Weather Forecast

    • 56
    • 77

    Mostly Sunny

    • 56
    • 77

    Becoming Sunny

    • 55
    • 76

    Mostly Sunny

    • 57
    • 76

    Mostly Sunny

    • 58
    • 80

    Mostly Sunny

    • 59
    • 79

    Partly Sunny

    • 58
    • 77

    Partly Sunny

Today 2 Aug Carquinez Strait and Delta

Sunny. Highs 85 to 91. West Winds 10 to 15 Mph. Gusts up to 30 Mph in the morning.

Tonight 2 Aug Carquinez Strait and Delta

Clear. Lows around 58. Southwest Winds 10 to 15 Mph with Gusts to around 25 Mph.

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South Slough Temperature Statistics

August Temperature

Napa, Napa County Airport (5 miles)

  • Lowest

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  • Average August

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Climate (2020–Present)

Napa, Napa County Airport (5 miles)

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  • Average Low 2020–2025

    46.9 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    70.5 °F
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