Marconi Conference Center State Historic Park Weather Forecast

    • 53
    • 57

    Increasing Clouds

    • 52
    • 58

    Partly Sunny

    • 56
    • 62

    Mostly Sunny

    • 58
    • 65

    Mostly Cloudy

    • 61
    • 68

    Mostly Cloudy

    • 58
    • 65

    Mostly Cloudy

Today 5 Sep Coastal North Bay Including Point Reyes National Seashore

Partly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the 60s. Northwest Winds 5 to 10 Mph.

Tonight 5 Sep Coastal North Bay Including Point Reyes National Seashore

Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 40s to mid 50s. West Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Marconi Conference Center State Historic Park Temperature Statistics

September Temperature

Petaluma Municipal Airport (16.8 miles)

  • Lowest 1 September, 2026

    53.6 °F

  • Average September

    61.3 °F

  • Highest 1 September, 2026

    75.2 °F

Climate (2021–2026)

Petaluma Municipal Airport (16.8 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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