West Valley Reservoir Weather Forecast

    • 44
    • 79

    Partly Cloudy

    • 47
    • 83

    Partly Sunny

    • 48
    • 84

    Partly Sunny

    • 48
    • 83

    Partly Sunny

    • 42
    • 74

    Partly Sunny

    • 40
    • 74

    Partly Sunny

Today 9 May Modoc County

Sunny. Highs in the mid 70s to lower 80s. East Winds around 5 Mph shifting to the southwest late this afternoon.

Tonight 9 May Modoc County

Partly cloudy. Lows in the mid 40s to lower 50s. Northwest Winds around 5 Mph shifting to the south late in the evening and overnight.

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West Valley Reservoir Temperature Statistics

May Temperature

Alturas (21.1 miles)

  • Lowest 1 May, 2026

    30.7 °F

  • Average May

    58 °F

  • Highest 6 May, 2026

    79.6 °F

Climate (2021–Present)

Alturas (21.1 miles)

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  • Average Low 2021–2026

    33.5 °F

  • Average 2021–2026

    49.6 °F

  • Average High 2021–2026

    64.9 °F
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