Two Rock Weather Forecast

    • 53
    • 82

    Mostly Sunny

    • 51
    • 82

    Mostly Sunny

    • 53
    • 83

    Partly Sunny

    • 54
    • 83

    Partly Sunny

    • 54
    • 82

    Partly Sunny

    • 55
    • 81

    Partly Sunny

    • 55
    • 80

    Mostly Sunny

Today 29 Sep North Bay Interior Valleys

Sunny. Highs in the lower 80s to mid 90s. West Winds 5 to 15 Mph.

Tonight 29 Sep North Bay Interior Valleys

Clear. Lows in the lower 50s to mid 60s. West Winds 5 to 10 Mph.

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Two Rock Temperature Statistics

September Temperature

Petaluma Municipal Airport (9.9 miles)

  • Lowest 7 September, 2026

    44.6 °F

  • Average September

    63.7 °F

  • Highest 9 September, 2026

    96.8 °F

Climate (2021–2026)

Petaluma Municipal Airport (9.9 miles)

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  • Average Low 2021–2026

    44.7 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    68.5 °F
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