Dutchman Slough - Knight Island Weather Forecast

    • 45
    • 67

    Sunny

    • 46
    • 66

    Mostly Sunny

    • 49
    • 65

    Mostly Cloudy

    • 48
    • 65

    Partly Sunny

    • 49
    • 64

    Partly Sunny

    • 47
    • 62

    Chance Rain

    • 44
    • 58

    Chance Rain

Today 3 Feb Carquinez Strait and Delta

Partly cloudy in the morning then clearing. Areas of fog until late afternoon. Highs around 65. Northeast Winds up to 10 Mph.

Tonight 3 Feb Carquinez Strait and Delta

Mostly clear. Patchy fog in the late evening and overnight. Lows 38 to 44. Light Winds.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Dutchman Slough - Knight Island Temperature Statistics

February Temperature

Napa, Napa County Airport (5.6 miles)

  • Lowest 1 February, 2026

    39 °F

  • Average February

    49.6 °F

  • Highest 1 February, 2026

    64 °F

Climate (2021–Present)

Napa, Napa County Airport (5.6 miles)

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

  • Average Low 2021–2026

    47.1 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    70.1 °F
Get WillyWeather+ to remove ads