Big Sage Reservoir Weather Forecast

    • 32
    • 49

    Patchy Fog

    • 32
    • 55

    Patchy Fog

    • 39
    • 58

    Mostly Cloudy

    • 37
    • 57

    Chance Rain Showers

    • 31
    • 50

    Chance Rain Showers

    • 29
    • 54

    Slight Chance Rain Showers

    • 30
    • 59

    Partly Sunny

Today 25 Feb Modoc County

Mostly cloudy. A 10 percent chance of rain Showers early this afternoon. Patchy fog late this afternoon. Highs in the mid 40s to lower 50s. Southwest Winds 10 to 15 Mph with Gusts to around 30 Mph.

Tonight 25 Feb Modoc County

Mostly cloudy. Patchy fog. Lows in the lower to mid 30s. Southwest Winds 5 to 10 Mph shifting to the south well after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Sage Reservoir Temperature Statistics

February Temperature

Alturas (9.3 miles)

  • Lowest 18 February, 2026

    6.7 °F

  • Average February

    36.8 °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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