Sonoma Creek - Richard Janson Bridge Weather Forecast

    • 43
    • 58

    Areas Fog

    • 43
    • 60

    Partly Sunny

    • 42
    • 59

    Partly Sunny

    • 44
    • 58

    Areas Fog

    • 46
    • 57

    Mostly Cloudy

    • 50
    • 58

    Chance Rain

Today 10 Dec North Bay Interior Valleys

Partly cloudy in the morning then becoming sunny. Patchy dense fog in the morning. Highs in the upper 40s to lower 60s. East Winds 5 to 10 Mph. Becoming south in the afternoon.

Tonight 10 Dec North Bay Interior Valleys

Mostly clear except patchy fog in the evening. Areas of fog after midnight. Lows in the 40s to lower 50s. North Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Sonoma Creek - Richard Janson Bridge Temperature Statistics

December Temperature

Napa, Napa County Airport (7.5 miles)

  • Lowest 2 December, 2025

    37 °F

  • Average December

    45.7 °F

  • Highest 3 December, 2025

    66 °F

Climate (2020–Present)

Napa, Napa County Airport (7.5 miles)

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

  • Average Low 2020–2025

    47 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    70.1 °F
Get WillyWeather+ to remove ads