Penngrove Weather Forecast

    • 50
    • 56

    Rain

    • 46
    • 53

    Rain

    • 44
    • 52

    Rain

    • 40
    • 54

    Chance Rain

    • 35
    • 54

    Chance Rain

    • 34
    • 52

    Mostly Sunny

Today 3 Jan North Bay Interior Valleys

Breezy. Showers and a slight chance of Thunderstorms. Highs in the 50s. South Winds 20 to 30 Mph.

Tonight 3 Jan North Bay Interior Valleys

Showers and a slight chance of Thunderstorms. Lows near 50. South Winds 10 to 20 Mph with Gusts to around 35 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Penngrove Temperature Statistics

January Temperature

Petaluma Municipal Airport (4.3 miles)

  • Lowest 1 January, 2026

    48.2 °F

  • Average January

    50.7 °F

  • Highest 1 January, 2026

    53.6 °F

Climate (2021–Present)

Petaluma Municipal Airport (4.3 miles)

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  • Average Low 2021–2026

    44.6 °F

  • Average 2021–2026

    55.1 °F

  • Average High 2021–2026

    68.6 °F
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