Two Rock Weather Forecast

    • 61
    • 87

    Increasing Clouds

    • 63
    • 90

    Mostly Cloudy

    • 57
    • 83

    Partly Sunny

    • 55
    • 76

    Partly Sunny

    • 54
    • 73

    Mostly Sunny

    • 53
    • 76

    Mostly Sunny

Today 8 Sep North Bay Interior Valleys

Sunny. Highs in the 80s to 90s. East Winds up to 5 Mph. Becoming south in the afternoon.

Tonight 8 Sep North Bay Interior Valleys

Mostly clear. Lows in the mid 50s to lower 60s. North Winds up to 5 Mph.

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Two Rock Temperature Statistics

September Temperature

Petaluma Municipal Airport (9.9 miles)

  • Lowest 5 September, 2026

    46.4 °F

  • Average September

    60.9 °F

  • Highest 5 September, 2026

    78.8 °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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