Two Rock Weather Forecast

    • 41
    • 62

    Increasing Clouds

    • 45
    • 62

    Partly Sunny

    • 44
    • 62

    Partly Sunny

    • 44
    • 63

    Mostly Cloudy

    • 45
    • 64

    Partly Sunny

    • 47
    • 63

    Mostly Cloudy

Today 4 Dec North Bay Interior Valleys

Sunny. Highs in the lower 50s to mid 60s. East Winds 10 to 15 Mph. Becoming south in the afternoon.

Tonight 4 Dec North Bay Interior Valleys

Mostly clear in the evening then becoming partly cloudy. Lows in the 30s to upper 40s. West Winds 5 to 10 Mph.

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Two Rock Temperature Statistics

December Temperature

Petaluma Municipal Airport (9.9 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 (9.9 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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