West Valley Reservoir Weather Forecast

    • 37
    • 49

    Rain

    • 34
    • 48

    Rain

    • 35
    • 46

    Rain

    • 34
    • 45

    Rain

    • 30
    • 43

    Rain/Snow Likely

    • 25
    • 41

    Rain/Snow

Today 20 Dec Modoc County

Mostly cloudy with a 30 percent chance of rain and snow. Snow level 5500 feet this afternoon. Highs in the lower to mid 40s. Southwest Winds 10 to 15 Mph.

Tonight 20 Dec Modoc County

Chance of rain and snow in the Evening, then rain and snow after midnight. Snow level 5500 feet rising to 7000 feet after midnight. Little or no snow accumulation. Lows in the mid 30s to lower 40s. South Winds 10 to 15 Mph. Chance of precipitation 90 percent.

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West Valley Reservoir Temperature Statistics

December Temperature

Alturas (21.1 miles)

  • Lowest 1 December, 2025

    15.1 °F

  • Average December

    44 °F

  • Highest 10 December, 2025

    64 °F

Climate (2020–Present)

Alturas (21.1 miles)

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  • Average Low 2020–2025

    33.3 °F

  • Average 2020–2025

    49.3 °F

  • Average High 2020–2025

    64.4 °F
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