Penngrove Weather Forecast

    • 44
    • 63

    Areas Fog

    • 44
    • 64

    Patchy Fog

    • 43
    • 63

    Areas Fog

    • 44
    • 64

    Patchy Fog

    • 46
    • 65

    Patchy Fog

    • 46
    • 66

    Partly Sunny

Today 5 Dec North Bay Interior Valleys

Sunny. Patchy fog in the morning. Highs in the 50s to mid 60s. East Winds up to 5 Mph. Becoming southwest in the afternoon.

Tonight 5 Dec North Bay Interior Valleys

Partly cloudy. Patchy fog. Lows in the 40s. Northwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Penngrove Temperature Statistics

December Temperature

Petaluma Municipal Airport (4.3 miles)

  • Lowest 2 December, 2025

    35.6 °F

  • Average December

    44.8 °F

  • Highest 2 December, 2025

    60.8 °F

Climate (2020–Present)

Petaluma Municipal Airport (4.3 miles)

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  • Average Low 2020–2025

    44.6 °F

  • Average 2020–2025

    55.1 °F

  • Average High 2020–2025

    68.7 °F
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