Petaluma River - San Antonio Creek Entrance Weather Forecast

    • 51
    • 83

    Increasing Clouds

    • 52
    • 64

    Chance Rain

    • 49
    • 62

    Chance Rain

    • 41
    • 61

    Slight Chance Rain

    • 44
    • 63

    Rain Likely

    • 46
    • 59

    Rain Likely

    • 45
    • 62

    Slight Chance Rain

Today 25 Mar North Bay Interior Valleys

Sunny late in the morning then becoming partly cloudy. Highs in the mid 70s to lower 90s. East Winds 5 to 10 Mph. Becoming southeast in the afternoon.

Tonight 25 Mar North Bay Interior Valleys

Mostly clear in the evening then becoming partly cloudy. Patchy fog after midnight. Lows in the upper 40s to mid 50s. Southwest Winds 5 to 10 Mph.

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Petaluma River - San Antonio Creek Entrance Temperature Statistics

March Temperature

Novato / Gnoss Field (1.2 miles)

  • Lowest 9 March, 2025

    35.6 °F

  • Average March

    52.1 °F

  • Highest 23 March, 2025

    77 °F

Climate (2020–Present)

Novato / Gnoss Field (1.2 miles)

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  • Average Low 2020–2025

    45.9 °F

  • Average 2020–2025

    57.6 °F

  • Average High 2020–2025

    72.7 °F
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