Two Rock Weather Forecast

    • 51
    • 77

    Increasing Clouds

    • 55
    • 69

    Partly Sunny

    • 53
    • 74

    Areas Fog

    • 53
    • 76

    Mostly Sunny

    • 53
    • 77

    Partly Sunny

    • 53
    • 73

    Partly Sunny

Today 15 Sep North Bay Interior Valleys

Sunny. Patchy fog in the morning. Highs in the lower 70s to mid 80s. South Winds 5 to 15 Mph.

Tonight 15 Sep North Bay Interior Valleys

Mostly clear in the evening then becoming partly cloudy. Patchy fog after midnight. Lows in the 40s to upper 50s. Southwest Winds 10 to 15 Mph.

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  • Temperature Real-Time

Two Rock Temperature Statistics

September Temperature

Petaluma Municipal Airport (9.9 miles)

  • Lowest 7 September, 2026

    44.6 °F

  • Average September

    65.9 °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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