Steamboat Slough Weather Forecast

    • 50
    • 70

    Chance Rain

    • 43
    • 61

    Rain Showers

    • 45
    • 64

    Chance Rain

    • 43
    • 61

    Rain Likely

    • 37
    • 60

    Slight Chance Rain

    • 41
    • 61

    Rain Likely

    • 40
    • 58

    Rain

Today 12 Nov North Bay Interior Valleys

Mostly cloudy. Highs in the mid 60s to lower 70s. South Winds 10 to 20 Mph.

Tonight 12 Nov North Bay Interior Valleys

Partly cloudy in the evening then becoming mostly cloudy. Breezy. A chance of rain after midnight. Lows in the mid 40s to upper 50s. South Winds 20 to 30 Mph. Becoming southeast 10 to 20 Mph after midnight. Gusts up to 45 Mph.

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  • Temperature Real-Time

Steamboat Slough Temperature Statistics

November Temperature

Napa, Napa County Airport (7.5 miles)

  • Lowest 1 November, 2026

    40.6 °F

  • Average November

    56.3 °F

  • Highest 5 November, 2026

    75.7 °F

Climate (2021–2026)

Napa, Napa County Airport (7.5 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    58.6 °F

  • Average High 2021–2026

    70.4 °F
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