Lake Henne Weather Forecast

    • 60
    • 83

    Chance Rain Showers

    • 59
    • 75

    Chance Rain Showers

    • 60
    • 78

    Sunny

    • 64
    • 83

    Sunny

    • 63
    • 88

    Chance Rain Showers

    • 61
    • 78

    Chance Rain Showers

Today 18 Sep North Bay Interior Mountains

Mostly cloudy late in the morning then becoming partly cloudy. A slight chance of Showers and isolated Thunderstorms in the afternoon. Highs in the mid 70s to upper 80s. Southwest Winds 5 to 10 Mph.

Tonight 18 Sep North Bay Interior Mountains

Mostly cloudy. Isolated Thunderstorms in the evening. A chance of Showers. Lows in the upper 50s to mid 60s. South Winds around 5 Mph in the evening. Becoming light.

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Lake Henne Temperature Statistics

September Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (19.9 miles)

  • Lowest 14 September, 2025

    48 °F

  • Average September

    65.9 °F

  • Highest 1 September, 2025

    99 °F

Climate (2020–Present)

Santa Rosa, Santa Rosa Sonoma County Airport (19.9 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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