Flournoy Reservoir Weather Forecast

    • 35
    • 76

    Mostly Sunny

    • 34
    • 74

    Mostly Sunny

    • 28
    • 64

    Mostly Cloudy

    • 27
    • 59

    Partly Sunny

    • 28
    • 61

    Chance Rain

    • 24
    • 55

    Chance Rain

Today 17 Oct Modoc County

Sunny. Highs in the lower to mid 70s. South Winds 5 to 10 Mph shifting to the southwest in the afternoon.

Tonight 17 Oct Modoc County

Partly cloudy in the evening then clearing. Lows in the mid 30s to lower 40s. West Winds 5 to 10 Mph shifting to the southeast after midnight.

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  • Temperature Real-Time

Flournoy Reservoir Temperature Statistics

October Temperature

Alturas (16.2 miles)

  • Lowest 12 October, 2026

    15.7 °F

  • Average October

    55.8 °F

  • Highest 3 October, 2026

    89.7 °F

Climate (2021–2026)

Alturas (16.2 miles)

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  • Average Low 2021–2026

    33.2 °F

  • Average 2021–2026

    49.2 °F

  • Average High 2021–2026

    64.8 °F
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