Two Rock Weather Forecast

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    • 57

    Rain

    • 49
    • 58

    Rain

    • 47
    • 55

    Rain

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    • 53

    Rain

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    • 53

    Rain

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    Rain

Today 20 Dec North Bay Interior Valleys

Patchy fog in the morning. Rain. Highs in the 50s to lower 60s. Southwest Winds up to 5 Mph. Becoming southeast around 5 Mph in the afternoon.

Tonight 20 Dec North Bay Interior Valleys

Rain. Lows in the lower to mid 50s. South Winds 10 to 20 Mph. Gusts up to 35 Mph after midnight.

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Two Rock Temperature Statistics

December Temperature

Petaluma Municipal Airport (9.9 miles)

  • Lowest 4 December, 2025

    33.8 °F
  • Average December

    43.9 °F
  • Highest 3 December, 2025

    66.2 °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

    68.6 °F
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