Tomales Bay - Marshall Weather Forecast

    • 47
    • 64

    Becoming Sunny

    • 51
    • 69

    Mostly Sunny

    • 51
    • 72

    Mostly Sunny

    • 50
    • 66

    Breezy

    • 52
    • 69

    Mostly Sunny

    • 52
    • 73

    Mostly Sunny

Today 13 May Coastal North Bay Including Point Reyes National Seashore

Partly cloudy in the morning then becoming sunny. Highs in the 60s to lower 70s. Northwest Winds 10 to 20 Mph with Gusts to around 35 Mph.

Tonight 13 May Coastal North Bay Including Point Reyes National Seashore

Mostly clear. Lows around 50. Northwest Winds 10 to 20 Mph. Gusts up to 35 Mph in the evening.

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Tomales Bay - Marshall Temperature Statistics

May Temperature

Petaluma Municipal Airport (16.8 miles)

  • Lowest 4 May, 2026

    42.8 °F

  • Average May

    56 °F

  • Highest 10 May, 2026

    77 °F

Climate (2021–Present)

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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