Penngrove Weather Forecast

    • 48
    • 76

    Increasing Clouds

    • 43
    • 79

    Decreasing Clouds

    • 47
    • 78

    Mostly Sunny

    • 48
    • 80

    Partly Sunny

    • 45
    • 72

    Chance Rain

    • 44
    • 64

    Chance Rain

    • 41
    • 65

    Rain Likely

Today 26 Mar North Bay Interior Valleys

Partly cloudy. Highs in the 70s to lower 80s. North Winds 10 to 20 Mph.

Tonight 26 Mar North Bay Interior Valleys

Partly cloudy in the evening then becoming mostly cloudy. Breezy. Lows in the mid 40s to lower 60s. Northwest Winds 20 to 30 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Penngrove Temperature Statistics

March Temperature

Petaluma Municipal Airport (4.3 miles)

  • Lowest 10 March, 2026

    37.4 °F

  • Average March

    57.1 °F

  • Highest 18 March, 2026

    89.6 °F

Climate (2021–Present)

Petaluma Municipal Airport (4.3 miles)

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

  • Average Low 2021–2026

    44.7 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    68.6 °F
Get WillyWeather+ to remove ads