Sonoma Creek - Richard Janson Bridge Weather Forecast

    • 44
    • 68

    Mostly Sunny

    • 47
    • 74

    Mostly Sunny

    • 48
    • 77

    Mostly Sunny

    • 49
    • 76

    Mostly Cloudy

    • 53
    • 79

    Mostly Sunny

    • 56
    • 83

    Mostly Cloudy

    • 57
    • 85

    Partly Sunny

Today 10 Mar North Bay Interior Valleys

Sunny. Highs in the 60s to lower 70s. West Winds 10 to 15 Mph.

Tonight 10 Mar North Bay Interior Valleys

Mostly clear. Lows in the 40s to lower 50s. Northwest Winds 5 to 15 Mph.

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  • Temperature Real-Time

Sonoma Creek - Richard Janson Bridge Temperature Statistics

March Temperature

Napa, Napa County Airport (7.5 miles)

  • Lowest 5 March, 2026

    37.9 °F

  • Average March

    58.3 °F

  • Highest 7 March, 2026

    77 °F

Climate (2021–Present)

Napa, Napa County Airport (7.5 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    58.2 °F

  • Average High 2021–2026

    70.1 °F
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