Two Rock Weather Forecast

    • 57
    • 81

    Decreasing Clouds

    • 56
    • 77

    Partly Sunny

    • 54
    • 74

    Partly Sunny

    • 54
    • 76

    Mostly Sunny

    • 54
    • 75

    Mostly Sunny

    • 55
    • 77

    Mostly Sunny

Today 21 Jul North Bay Interior Valleys

Mostly cloudy in the morning then becoming partly cloudy. A slight chance of Showers. Highs in the upper 70s to mid 90s. Southwest Winds up to 5 Mph increasing to 10 to 15 Mph in the afternoon.

Tonight 21 Jul North Bay Interior Valleys

Mostly clear. Lows in the mid 50s to upper 60s. Southwest Winds 5 to 15 Mph.

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Two Rock Temperature Statistics

July Temperature

Petaluma Municipal Airport (9.9 miles)

  • Lowest 17 July, 2026

    44.6 °F

  • Average July

    61.9 °F

  • Highest 13 July, 2026

    95 °F

Climate (2021–2026)

Petaluma Municipal Airport (9.9 miles)

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  • Average Low 2021–2026

    44.8 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    68.5 °F
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