Second Napa Slough Weather Forecast

    • 54
    • 82

    Increasing Clouds

    • 57
    • 84

    Mostly Cloudy

    • 61
    • 90

    Mostly Sunny

    • 60
    • 90

    Mostly Sunny

    • 60
    • 89

    Mostly Sunny

    • 60
    • 89

    Mostly Sunny

Today 1 Oct North Bay Interior Valleys

Sunny. Patchy fog in the morning. Highs in the mid 70s to lower 90s. South Winds 5 to 10 Mph.

Tonight 1 Oct North Bay Interior Valleys

Partly cloudy in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows in the 50s to lower 60s. Southwest Winds up to 5 Mph.

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Second Napa Slough Temperature Statistics

October Temperature

Napa, Napa County Airport (6.8 miles)

  • Lowest

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  • Average October

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Climate (2021–2026)

Napa, Napa County Airport (6.8 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    58.5 °F

  • Average High 2021–2026

    70.3 °F
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