Big Sage Reservoir Weather Forecast

    • 31
    • 42

    Mostly Cloudy

    • 36
    • 46

    Chance Rain

    • 35
    • 45

    Rain

    • 25
    • 45

    Mostly Cloudy

    • 28
    • 53

    Mostly Cloudy

    • 28
    • 57

    Mostly Cloudy

    • 28
    • 53

    Chance Rain

Today 22 Feb Modoc County

Mostly cloudy. Slight chance of rain late this afternoon. Highs in the lower to mid 40s. Breezy. South Winds 15 to 25 Mph.

Tonight 22 Feb Modoc County

Mostly cloudy with a slight chance of rain. Lows in the lower to mid 30s. South Winds 10 to 15 Mph.

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Big Sage Reservoir Temperature Statistics

February Temperature

Alturas (9.3 miles)

  • Lowest 18 February, 2026

    10 °F

  • Average February

    36.5 °F

  • Highest 4 February, 2026

    67.6 °F

Climate (2021–Present)

Alturas (9.3 miles)

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  • Average Low 2021–2026

    33.4 °F

  • Average 2021–2026

    49.5 °F

  • Average High 2021–2026

    64.7 °F
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