Petaluma River - Black John Slough Entrance Weather Forecast

    • 40
    • 56

    Partly Sunny

    • 40
    • 56

    Partly Sunny

    • 47
    • 56

    Rain

    • 45
    • 57

    Chance Rain

    • 48
    • 56

    Rain Likely

    • 42
    • 57

    Chance Rain

    • 40
    • 55

    Slight Chance Rain

Today 19 Jan North Bay Interior Valleys

Partly cloudy. A slight chance of Showers. Highs in the 40s to upper 50s. Northwest Winds 10 to 20 Mph.

Tonight 19 Jan North Bay Interior Valleys

Partly cloudy. A slight chance of Showers in the evening. Lows in the upper 20s to mid 40s. Northwest Winds 10 to 20 Mph.

Graph Plots Open in Graphs
  • Temperature Forecast NOAA

  • Temperature Real-Time

Petaluma River - Black John Slough Entrance Temperature Statistics

January Temperature

Novato / Gnoss Field (1.9 miles)

  • Lowest 1 January, 2018

    35.6 °F
  • Average January

    51.6 °F
  • Highest 1 January, 2018

    62.6 °F

Climate (2010–Present)

Novato / Gnoss Field (1.9 miles)

Take a look at our website widgetsAvailable free! Find Out More
  • Average Low 2010–Present

    46.6 °F
  • Average 2010–Present

    58 °F
  • Average High 2010–Present

    71.7 °F
Get an account to remove ads