West Valley Reservoir Weather Forecast

    • 50
    • 83

    Becoming Sunny

    • 50
    • 84

    Mostly Sunny

    • 51
    • 85

    Mostly Sunny

    • 51
    • 86

    Mostly Sunny

    • 51
    • 86

    Mostly Sunny

    • 51
    • 85

    Mostly Sunny

Today 28 Aug Modoc County

Partly cloudy early this morning then becoming sunny. Highs in the lower to mid 80s. South Winds 5 to 10 Mph shifting to the southwest this afternoon.

Tonight 28 Aug Modoc County

Clear. Lows in the lower to mid 50s. Southwest Winds 5 to 10 Mph shifting to the south after midnight.

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West Valley Reservoir Temperature Statistics

August Temperature

Alturas (21.1 miles)

  • Lowest 19 August, 2025

    36.6 °F

  • Average August

    68.4 °F

  • Highest 12 August, 2025

    99.6 °F

Climate (2020–Present)

Alturas (21.1 miles)

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  • Average Low 2020–2025

    32.9 °F

  • Average 2020–2025

    49.2 °F

  • Average High 2020–2025

    64.5 °F
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