Penngrove Weather Forecast

    • 49
    • 56

    Rain

    • 46
    • 55

    Rain

    • 48
    • 53

    Rain

    • 44
    • 50

    Rain

    • 37
    • 51

    Chance Rain

    • 36
    • 52

    Fog

    • 37
    • 52

    Areas Fog

Today 22 Dec North Bay Interior Valleys

Areas of fog. Rain. Highs in the 50s. Southwest Winds 10 to 20 Mph.

Tonight 22 Dec North Bay Interior Valleys

Areas of fog. Rain. Lows in the upper 40s to mid 50s. North Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Penngrove Temperature Statistics

December Temperature

Petaluma Municipal Airport (4.3 miles)

  • Lowest 4 December, 2025

    33.8 °F

  • Average December

    45.1 °F

  • Highest 3 December, 2025

    66.2 °F

Climate (2020–Present)

Petaluma Municipal Airport (4.3 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