Hudeman Slough Weather Forecast

    • 55
    • 77

    Becoming Sunny

    • 57
    • 83

    Mostly Sunny

    • 59
    • 88

    Mostly Sunny

    • 57
    • 89

    Sunny

    • 56
    • 87

    Mostly Sunny

    • 56
    • 83

    Mostly Sunny

    • 56
    • 79

    Mostly Sunny

Today 13 Sep North Bay Interior Valleys

Sunny. Highs in the lower 70s to mid 80s. Southwest Winds 10 to 20 Mph.

Tonight 13 Sep North Bay Interior Valleys

Mostly clear. Lows in the 50s to lower 60s. West Winds 10 to 20 Mph.

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Hudeman Slough Temperature Statistics

September Temperature

Napa, Napa County Airport (4.3 miles)

  • Lowest 3 September, 2025

    52 °F

  • Average September

    66 °F

  • Highest 1 September, 2025

    89.1 °F

Climate (2020–Present)

Napa, Napa County Airport (4.3 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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