French Reservoir Weather Forecast

    • 21
    • 44

    Mostly Sunny

    • 31
    • 48

    Mostly Cloudy

    • 35
    • 51

    Mostly Cloudy

    • 34
    • 53

    Chance Rain Showers

    • 31
    • 56

    Partly Sunny

    • 32
    • 57

    Partly Sunny

Today 3 Dec Modoc County

Mostly cloudy until early afternoon then becoming partly cloudy. Patchy fog early this morning. Highs in the mid 30s to mid 40s. Northeast Winds 5 to 10 Mph.

Tonight 3 Dec Modoc County

Mostly clear in the evening then becoming partly cloudy. Lows in the lower to mid 20s. Northeast Winds around 5 Mph.

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French Reservoir Temperature Statistics

December Temperature

Alturas (8.1 miles)

  • Lowest 1 December, 2025

    15.1 °F

  • Average December

    34.8 °F

  • Highest 1 December, 2025

    51.1 °F

Climate (2020–Present)

Alturas (8.1 miles)

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  • Average Low 2020–2025

    33.2 °F

  • Average 2020–2025

    49.2 °F

  • Average High 2020–2025

    64.3 °F
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