Tomales Bay - Hog Island Weather Forecast

    • 52
    • 52

    Slight Chance Rain

    • 55
    • 57

    Rain

    • 50
    • 56

    Chance Rain

    • 53
    • 55

    Rain Likely

    • 51
    • 55

    Rain

    • 49
    • 54

    Rain Likely

    • 51
    • 54

    Rain Likely

Today 15 Dec Coastal North Bay Including Point Reyes National Seashore

Mostly cloudy. Highs in the upper 50s. Northwest Winds around 5 Mph.

Tonight 15 Dec Coastal North Bay Including Point Reyes National Seashore

Mostly cloudy. Patchy dense fog. A slight chance of rain. Lows in the lower 50s. Northwest Winds around 5 Mph.

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Tomales Bay - Hog Island Temperature Statistics

December Temperature

Petaluma Municipal Airport (18 miles)

  • Lowest 4 December, 2025

    33.8 °F

  • Average December

    43.3 °F

  • Highest 3 December, 2025

    66.2 °F

Climate (2020–Present)

Petaluma Municipal Airport (18 miles)

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  • Average Low 2020–2025

    44.6 °F

  • Average 2020–2025

    55.1 °F

  • Average High 2020–2025

    68.6 °F
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