Tomales Bay State Park Weather Forecast

    • 53
    • 60

    Chance Rain

    • 53
    • 60

    Mostly Cloudy

    • 53
    • 61

    Mostly Cloudy

    • 52
    • 61

    Mostly Cloudy

    • 52
    • 60

    Mostly Cloudy

    • 52
    • 62

    Partly Sunny

Today 22 Jul Coastal North Bay Including Point Reyes National Seashore

Mostly cloudy. A chance of drizzle in the morning. Highs in the lower 60s. West Winds 5 to 10 Mph.

Tonight 22 Jul Coastal North Bay Including Point Reyes National Seashore

Mostly cloudy. Patchy fog after midnight. Lows in the lower 50s. West Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tomales Bay State Park Temperature Statistics

July Temperature

Petaluma Municipal Airport (18 miles)

  • Lowest 5 July, 2025

    42.8 °F

  • Average July

    59.3 °F

  • Highest 10 July, 2025

    87.8 °F

Climate (2020–Present)

Petaluma Municipal Airport (18 miles)

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  • Average Low 2020–2025

    44.5 °F

  • Average 2020–2025

    55.3 °F

  • Average High 2020–2025

    69.2 °F
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