West Valley Reservoir Weather Forecast

    • 34
    • 47

    Rain

    • 35
    • 45

    Rain

    • 34
    • 46

    Rain

    • 33
    • 45

    Rain

    • 30
    • 43

    Rain

    • 26
    • 42

    Rain/Snow Likely

    • 25
    • 42

    Slight Chance Snow

Today 31 Dec Modoc County

Mostly cloudy. Highs in the mid 40s to lower 50s. Southeast Winds 5 to 10 Mph.

Tonight 31 Dec Modoc County

Rain through the night. Lows in the mid 30s. Southeast Winds 5 to 10 Mph. Chance of rain 80 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

    42.3 °F

  • Highest 10 December, 2025

    64 °F

Climate (2021–Present)

Alturas (21.1 miles)

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  • Average Low 2021–2025

    33.4 °F

  • Average 2021–2025

    49.4 °F

  • Average High 2021–2025

    64.4 °F
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