Detert Reservoir Weather Forecast

    • 50
    • 89

    Sunny

    • 41
    • 80

    Mostly Sunny

    • 41
    • 67

    Partly Sunny

    • 43
    • 67

    Slight Chance Rain

    • 42
    • 72

    Partly Sunny

    • 41
    • 69

    Patchy Fog

Today 17 Oct Eastern Lake

Sunny. Highs 80 to 90. Northwest wind around 5 Mph shifting to the southwest in the afternoon.

Tonight 17 Oct Eastern Lake

Clear. Lows 49 to 59. West wind around 5 Mph.

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Detert Reservoir Temperature Statistics

October Temperature

Santa Rosa, Santa Rosa Sonoma County Airport (21.7 miles)

  • Lowest 12 October, 2026

    38.6 °F

  • Average October

    66.7 °F

  • Highest 3 October, 2026

    102.7 °F

Climate (2021–2026)

Santa Rosa, Santa Rosa Sonoma County Airport (21.7 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    58.8 °F

  • Average High 2021–2026

    73 °F
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