Penngrove Weather Forecast

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    • 53

    Rain Showers

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    • 52

    Rain Showers

    • 43
    • 56

    Chance Rain Showers

    • 39
    • 55

    Chance Rain Showers

    • 37
    • 53

    Partly Sunny

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    • 54

    Partly Sunny

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    Partly Sunny

Today 4 Jan North Bay Interior Valleys

Showers likely and a slight chance of Thunderstorms late in the Morning, then a chance of Showers in the afternoon. Highs in the 40s to upper 50s. South Winds 5 to 15 Mph.

Tonight 4 Jan North Bay Interior Valleys

A chance of rain late in the Evening, then rain after midnight. Lows in the mid 40s to lower 50s. South Winds 5 to 10 Mph. Becoming southeast 10 to 20 Mph after midnight.

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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

    52.3 °F

  • Highest 2 January, 2026

    57.2 °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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