Tomales Bay - Preston Point Weather Forecast

    • 49
    • 54

    Rain Showers

    • 48
    • 53

    Rain Showers

    • 47
    • 55

    Chance Rain Showers

    • 44
    • 54

    Chance Rain Showers

    • 42
    • 53

    Mostly Sunny

    • 42
    • 53

    Mostly Sunny

    • 43
    • 54

    Partly Sunny

Today 4 Jan Coastal North Bay Including Point Reyes National Seashore

Showers likely and a slight chance of Thunderstorms. Highs in the mid 50s. Southwest Winds 5 to 10 Mph.

Tonight 4 Jan Coastal North Bay Including Point Reyes National Seashore

Showers. Lows in the upper 40s. Southwest Winds 5 to 15 Mph. Gusts up to 30 Mph after midnight.

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Tomales Bay - Preston Point Temperature Statistics

January Temperature

Petaluma Municipal Airport (18 miles)

  • Lowest 1 January, 2026

    48.2 °F

  • Average January

    52.3 °F

  • Highest 2 January, 2026

    57.2 °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

    68.6 °F
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