Tomales Bay - Indian Beach Weather Forecast

    • 57
    • 67

    Chance Rain Showers

    • 57
    • 68

    Partly Sunny

    • 56
    • 67

    Partly Sunny

    • 56
    • 69

    Mostly Sunny

    • 57
    • 72

    Partly Sunny

    • 58
    • 69

    Slight Chance Rain Showers

Today 18 Sep Coastal North Bay Including Point Reyes National Seashore

Mostly cloudy. A chance of Showers. Isolated Thunderstorms in the afternoon. Highs in the mid 60s to lower 70s. Southwest Winds 5 to 10 Mph.

Tonight 18 Sep Coastal North Bay Including Point Reyes National Seashore

Mostly cloudy. Patchy fog. A chance of Showers and isolated Thunderstorms. Lows in the upper 50s. Southwest Winds around 5 Mph in the evening. Becoming light.

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Tomales Bay - Indian Beach Temperature Statistics

September Temperature

Petaluma Municipal Airport (17.4 miles)

  • Lowest 14 September, 2025

    48.2 °F

  • Average September

    63.2 °F

  • Highest 1 September, 2025

    93.2 °F

Climate (2020–Present)

Petaluma Municipal Airport (17.4 miles)

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  • Average Low 2020–2025

    44.4 °F

  • Average 2020–2025

    55.2 °F

  • Average High 2020–2025

    69.1 °F
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