American Canyon Weather Forecast

    • 40
    • 55

    Partly Sunny

    • 37
    • 58

    Becoming Sunny

    • 39
    • 57

    Partly Sunny

    • 39
    • 60

    Mostly Sunny

    • 37
    • 59

    Mostly Sunny

    • 41
    • 61

    Mostly Sunny

    • 40
    • 62

    Mostly Sunny

Today 17 Jan North Bay Interior Valleys

Partly cloudy. Patchy fog late in the morning. Highs in the 50s to lower 60s. Southwest Winds 5 to 10 Mph.

Tonight 17 Jan North Bay Interior Valleys

Partly cloudy in the evening then becoming mostly cloudy. Patchy fog in the evening. Areas of fog after midnight. Lows in the mid 30s to upper 40s. West Winds up to 5 Mph in the evening. Becoming light.

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American Canyon Temperature Statistics

January Temperature

Napa, Napa County Airport (2.5 miles)

  • Lowest 14 January, 2025

    32 °F

  • Average January

    51.1 °F

  • Highest 7 January, 2025

    70.6 °F

Climate (2020–Present)

Napa, Napa County Airport (2.5 miles)

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  • Average Low 2020–2025

    47 °F

  • Average 2020–2025

    58.2 °F

  • Average High 2020–2025

    70.7 °F
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