Tomales Bay - Preston Point Weather Forecast

    • 51
    • 57

    Decreasing Clouds

    • 53
    • 58

    Partly Sunny

    • 54
    • 62

    Mostly Sunny

    • 53
    • 63

    Partly Sunny

    • 52
    • 61

    Partly Sunny

    • 53
    • 59

    Partly Sunny

Today 18 Aug Coastal North Bay Including Point Reyes National Seashore

Partly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the 60s. West Winds 5 to 10 Mph.

Tonight 18 Aug Coastal North Bay Including Point Reyes National Seashore

Mostly cloudy. Patchy fog. Lows in the lower 50s. West Winds around 5 Mph.

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Tomales Bay - Preston Point Temperature Statistics

August Temperature

Petaluma Municipal Airport (18 miles)

  • Lowest 3 August, 2025

    46.4 °F

  • Average August

    62.6 °F

  • Highest 6 August, 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

    55.2 °F

  • Average High 2020–2025

    69.1 °F
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