Tomales Bay State Park Weather Forecast

    • 44
    • 57

    Decreasing Clouds

    • 45
    • 60

    Increasing Clouds

    • 48
    • 59

    Mostly Cloudy

    • 46
    • 60

    Slight Chance Rain

    • 46
    • 60

    Mostly Cloudy

    • 48
    • 61

    Mostly Cloudy

    • 49
    • 61

    Mostly Cloudy

Today 25 Jan Coastal North Bay Including Point Reyes National Seashore

Cloudy. Highs in the upper 50s. East Winds around 10 Mph.

Tonight 25 Jan Coastal North Bay Including Point Reyes National Seashore

Mostly cloudy late in the evening then becoming partly cloudy. Lows in the lower 40s. East Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tomales Bay State Park Temperature Statistics

January Temperature

Petaluma Municipal Airport (18 miles)

  • Lowest 9 January, 2026

    30.2 °F

  • Average January

    50.5 °F

  • Highest 16 January, 2026

    64.4 °F

Climate (2021–Present)

Petaluma Municipal Airport (18 miles)

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  • Average Low 2021–2026

    44.6 °F

  • Average 2021–2026

    55.1 °F

  • Average High 2021–2026

    68.5 °F
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