Tomales Bay - Marshall Weather Forecast

    • 54
    • 66

    Increasing Clouds

    • 54
    • 68

    Partly Sunny

    • 54
    • 67

    Partly Sunny

    • 54
    • 69

    Mostly Sunny

    • 54
    • 66

    Mostly Sunny

    • 53
    • 66

    Partly Sunny

Today 24 Jul Coastal North Bay Including Point Reyes National Seashore

Partly cloudy late in the morning then becoming sunny. Highs in the mid 60s to lower 70s. West Winds 10 to 20 Mph.

Tonight 24 Jul Coastal North Bay Including Point Reyes National Seashore

Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 50s. West Winds 10 to 20 Mph.

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Tomales Bay - Marshall Temperature Statistics

July Temperature

Petaluma Municipal Airport (16.8 miles)

  • Lowest 17 July, 2026

    44.6 °F

  • Average July

    62.6 °F

  • Highest 21 July, 2026

    96.8 °F

Climate (2021–2026)

Petaluma Municipal Airport (16.8 miles)

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  • Average Low 2021–2026

    44.8 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    68.5 °F
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