Marconi Conference Center State Historic Park Weather Forecast

    • 47
    • 54

    Increasing Clouds

    • 48
    • 55

    Partly Sunny

    • 47
    • 55

    Partly Sunny

    • 48
    • 55

    Partly Sunny

    • 50
    • 56

    Partly Sunny

    • 49
    • 58

    Partly Sunny

Today 5 Dec Coastal North Bay Including Point Reyes National Seashore

Sunny. Highs in the upper 50s. Northeast Winds around 5 Mph. Becoming west in the afternoon.

Tonight 5 Dec Coastal North Bay Including Point Reyes National Seashore

Partly cloudy. Lows in the upper 40s. North Winds 5 to 15 Mph.

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  • Temperature Real-Time

Marconi Conference Center State Historic Park Temperature Statistics

December Temperature

Petaluma Municipal Airport (16.8 miles)

  • Lowest 2 December, 2025

    35.6 °F

  • Average December

    47.2 °F

  • Highest 3 December, 2025

    66.2 °F

Climate (2020–Present)

Petaluma Municipal Airport (16.8 miles)

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  • Average Low 2020–2025

    44.6 °F

  • Average 2020–2025

    55.1 °F

  • Average High 2020–2025

    68.7 °F
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