Penngrove Weather Forecast

    • 36
    • 62

    Increasing Clouds

    • 37
    • 54

    Mostly Cloudy

    • 37
    • 58

    Partly Sunny

    • 41
    • 58

    Chance Rain

    • 40
    • 57

    Chance Rain

    • 42
    • 62

    Fog

    • 43
    • 61

    Areas Fog

Today 24 Jan North Bay Interior Valleys

Sunny, breezy. Highs near 60. North Winds 20 to 30 Mph with Gusts to around 50 Mph.

Tonight 24 Jan North Bay Interior Valleys

Clear in the evening then becoming partly cloudy. Breezy. Lows in the lower 30s to mid 40s. North Winds 20 to 30 Mph. Becoming east after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Penngrove Temperature Statistics

January Temperature

Petaluma Municipal Airport (4.3 miles)

  • Lowest 9 January, 2026

    30.2 °F

  • Average January

    50.6 °F

  • Highest 16 January, 2026

    64.4 °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

    68.5 °F
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