Lower Roberts Reservoir Weather Forecast

    • 39
    • 81

    Partly Sunny

    • 38
    • 79

    Mostly Sunny

    • 42
    • 80

    Mostly Sunny

    • 40
    • 79

    Partly Sunny

    • 34
    • 70

    Partly Sunny

    • 36
    • 71

    Partly Sunny

    • 33
    • 70

    Mostly Sunny

Today 21 Sep Modoc County

Partly cloudy. Highs in the mid 70s to lower 80s. Northwest Winds 5 to 10 Mph.

Tonight 21 Sep Modoc County

Partly cloudy. Lows in the mid 40s to lower 50s. Northwest Winds 5 to 10 Mph.

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Lower Roberts Reservoir Temperature Statistics

September Temperature

Alturas (34.8 miles)

  • Lowest 14 September, 2026

    28.7 °F

  • Average September

    58.3 °F

  • Highest 10 September, 2026

    85.6 °F

Climate (2021–2026)

Alturas (34.8 miles)

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  • Average Low 2021–2026

    33.2 °F

  • Average 2021–2026

    49.1 °F

  • Average High 2021–2026

    64.7 °F
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