Sonoma Creek - Richard Janson Bridge Weather Forecast

    • 50
    • 66

    Increasing Clouds

    • 49
    • 70

    Mostly Sunny

    • 52
    • 74

    Mostly Sunny

    • 51
    • 72

    Partly Sunny

    • 51
    • 69

    Mostly Sunny

    • 49
    • 74

    Mostly Sunny

Today 25 May North Bay Interior Valleys

Mostly cloudy in the morning then becoming partly cloudy. Patchy fog in the morning. Highs in the lower 60s to mid 70s. West Winds 10 to 20 Mph.

Tonight 25 May North Bay Interior Valleys

Mostly cloudy. A slight chance of drizzle. Lows near 50. West Winds 10 to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sonoma Creek - Richard Janson Bridge Temperature Statistics

May Temperature

Napa, Napa County Airport (7.5 miles)

  • Lowest 19 May, 2026

    44.7 °F

  • Average May

    62.1 °F

  • Highest 19 May, 2026

    89.7 °F

Climate (2021–Present)

Napa, Napa County Airport (7.5 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    58.4 °F

  • Average High 2021–2026

    70.2 °F
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