Yountville Weather Forecast

    • 45
    • 60

    Areas Fog

    • 49
    • 57

    Mostly Cloudy

    • 50
    • 56

    Rain

    • 51
    • 54

    Rain

    • 49
    • 56

    Rain

    • 45
    • 54

    Rain Likely

    • 46
    • 51

    Rain

Today 17 Dec North Bay Interior Valleys

Partly cloudy. Highs in the 50s to mid 60s. West Winds 5 to 10 Mph.

Tonight 17 Dec North Bay Interior Valleys

Partly cloudy in the evening then becoming mostly cloudy. Widespread dense fog. Lows in the 40s. West Winds up to 5 Mph in the evening. Becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Yountville Temperature Statistics

December Temperature

Napa, Napa County Airport (13.7 miles)

  • Lowest 2 December, 2025

    37 °F

  • Average December

    44.4 °F

  • Highest 3 December, 2025

    66 °F

Climate (2020–Present)

Napa, Napa County Airport (13.7 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    47 °F

  • Average 2020–2025

    58 °F

  • Average High 2020–2025

    70.1 °F
Get WillyWeather+ to remove ads