West Valley Reservoir Weather Forecast

    • 40
    • 55

    Rain

    • 38
    • 55

    Rain

    • 40
    • 55

    Rain Likely

    • 39
    • 49

    Rain

    • 39
    • 51

    Rain Likely

    • 36
    • 53

    Rain Likely

Today 16 Dec Modoc County

Cloudy. Rain likely in the Morning, then rain in the afternoon. Highs in the lower to mid 50s. Southwest Winds 10 to 15 Mph. Chance of rain 80 percent.

Tonight 16 Dec Modoc County

Rain. Lows around 40. Windy. Southwest Winds 10 to 15 Mph increasing to 25 to 35 Mph with Gusts to around 50 Mph late in the evening and overnight. Chance of rain near 100 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

    42.5 °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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