Tomales Bay - Preston Point Weather Forecast

    • 56
    • 64

    Mostly Sunny

    • 59
    • 70

    Increasing Clouds

    • 62
    • 73

    Partly Sunny

    • 58
    • 67

    Partly Sunny

    • 56
    • 67

    Partly Sunny

    • 55
    • 66

    Partly Sunny

    • 55
    • 67

    Partly Sunny

Today 7 Sep Coastal North Bay Including Point Reyes National Seashore

Sunny. Highs in the upper 60s to mid 70s. West Winds 5 to 10 Mph.

Tonight 7 Sep Coastal North Bay Including Point Reyes National Seashore

Mostly clear. Lows in the upper 50s. Northwest Winds around 5 Mph in the evening. Becoming light.

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Tomales Bay - Preston Point Temperature Statistics

September Temperature

Petaluma Municipal Airport (18 miles)

  • Lowest 5 September, 2026

    46.4 °F

  • Average September

    60.9 °F

  • Highest 5 September, 2026

    78.8 °F

Climate (2021–2026)

Petaluma Municipal Airport (18 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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