Steamboat Slough Weather Forecast

    • 43
    • 63

    Mostly Cloudy

    • 45
    • 57

    Rain Showers

    • 40
    • 56

    Rain Likely

    • 38
    • 60

    Areas Fog

    • 42
    • 61

    Mostly Cloudy

    • 40
    • 56

    Rain Likely

Today 9 Feb North Bay Interior Valleys

Mostly cloudy. Patchy fog in the morning. Highs in the upper 50s to mid 60s. Northwest Winds 10 to 15 Mph.

Tonight 9 Feb North Bay Interior Valleys

Mostly cloudy. A slight chance of rain after midnight. Lows in the 40s to lower 50s. Southeast Winds 5 to 10 Mph becoming northeast after midnight.

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Steamboat Slough Temperature Statistics

February Temperature

Napa, Napa County Airport (7.5 miles)

  • Lowest 2 February, 2026

    35.7 °F

  • Average February

    52.8 °F

  • Highest 5 February, 2026

    71.7 °F

Climate (2021–Present)

Napa, Napa County Airport (7.5 miles)

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  • Average Low 2021–2026

    47.1 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    70.1 °F
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