Two Rock Weather Forecast

    • 45
    • 56

    Increasing Clouds

    • 48
    • 53

    Rain

    • 51
    • 56

    Rain

    • 45
    • 56

    Rain

    • 42
    • 54

    Rain Likely

    • 43
    • 54

    Rain Likely

Today 30 Dec North Bay Interior Valleys

Partly cloudy in the morning then becoming mostly cloudy. Patchy dense fog in the morning. Highs in the upper 40s to lower 60s. East Winds 10 to 20 Mph.

Tonight 30 Dec North Bay Interior Valleys

Cloudy. A slight chance of rain after midnight. Lows in the 40s. East Winds 5 to 15 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Two Rock Temperature Statistics

December Temperature

Petaluma Municipal Airport (9.9 miles)

  • Lowest 28 December, 2025

    32 °F

  • Average December

    46.8 °F

  • Highest 3 December, 2025

    66.2 °F

Climate (2020–Present)

Petaluma Municipal Airport (9.9 miles)

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

  • Average Low 2020–2025

    44.6 °F

  • Average 2020–2025

    55.1 °F

  • Average High 2020–2025

    68.6 °F
Get WillyWeather+ to remove ads