Steamboat Slough Weather Forecast

    • 41
    • 66

    Decreasing Clouds

    • 46
    • 67

    Partly Sunny

    • 47
    • 68

    Mostly Cloudy

    • 44
    • 66

    Mostly Cloudy

    • 43
    • 69

    Mostly Sunny

    • 45
    • 71

    Partly Sunny

Today 21 Feb North Bay Interior Valleys

Partly cloudy in the morning then becoming sunny. Highs in the 60s to lower 70s. Northeast Winds up to 5 Mph. Becoming southwest around 5 Mph in the afternoon.

Tonight 21 Feb North Bay Interior Valleys

Partly cloudy. Patchy fog after midnight. Lows in the 40s. West Winds up to 5 Mph in the evening. Becoming light.

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Steamboat Slough Temperature Statistics

February Temperature

Napa, Napa County Airport (7.5 miles)

  • Lowest 10 February, 2025

    29.8 °F

  • Average February

    49.2 °F

  • Highest 18 February, 2025

    62.7 °F

Climate (2020–Present)

Napa, Napa County Airport (7.5 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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