West Valley Reservoir Weather Forecast

    • 51
    • 87

    Mostly Sunny

    • 51
    • 91

    Mostly Sunny

    • 48
    • 88

    Sunny

    • 48
    • 84

    Mostly Sunny

    • 52
    • 86

    Sunny

    • 54
    • 92

    Sunny

Today 6 Jul Modoc County

Sunny. Highs in the lower 80s to lower 90s. Northeast Winds 5 to 10 Mph shifting to the southeast early in the Afternoon, then shifting to the west late in the afternoon.

Tonight 6 Jul Modoc County

Clear. Lows in the mid 50s. Northwest Winds 5 to 10 Mph.

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West Valley Reservoir Temperature Statistics

July Temperature

Alturas (21.1 miles)

  • Lowest 2 July, 2025

    46.9 °F

  • Average July

    69.2 °F

  • Highest 1 July, 2025

    90 °F

Climate (2020–Present)

Alturas (21.1 miles)

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  • Average Low 2020–2025

    32.9 °F

  • Average 2020–2025

    49.3 °F

  • Average High 2020–2025

    64.5 °F
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