Duncans Mills Weather Forecast

    • 58
    • 81

    Mostly Sunny

    • 57
    • 84

    Mostly Sunny

    • 56
    • 76

    Mostly Cloudy

    • 55
    • 71

    Areas Fog

    • 55
    • 74

    Patchy Fog

    • 58
    • 79

    Mostly Sunny

Today 16 Sep Coastal North Bay Including Point Reyes National Seashore

Sunny. Patchy fog in the morning. Highs in the 60s to upper 70s. South Winds around 5 Mph. Becoming west in the afternoon.

Tonight 16 Sep Coastal North Bay Including Point Reyes National Seashore

Partly cloudy. Lows in the mid 50s. West Winds around 5 Mph in the evening. Becoming light.

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  • Temperature Real-Time

Duncans Mills Temperature Statistics

September Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (13 miles)

  • Lowest 14 September, 2025

    48 °F

  • Average September

    65.3 °F

  • Highest 1 September, 2025

    99 °F

Climate (2020–Present)

Santa Rosa, Santa Rosa Sonoma County Airport (13 miles)

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  • Average Low 2020–2025

    45.3 °F

  • Average 2020–2025

    57.9 °F

  • Average High 2020–2025

    72.8 °F
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