Big Sage Reservoir Weather Forecast

    • 35
    • 67

    Increasing Clouds

    • 37
    • 66

    Partly Sunny

    • 36
    • 68

    Partly Sunny

    • 41
    • 66

    Mostly Cloudy

    • 30
    • 62

    Partly Sunny

    • 31
    • 59

    Partly Sunny

Today 21 Mar Modoc County

Partly cloudy this morning then becoming sunny. Highs in the mid 60s to lower 70s. Northwest Winds 10 to 15 Mph.

Tonight 21 Mar Modoc County

Mostly clear in the evening then becoming partly cloudy. Lows in the mid 30s to lower 40s. North Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Sage Reservoir Temperature Statistics

March Temperature

Alturas (9.3 miles)

  • Lowest 11 March, 2026

    20.6 °F

  • Average March

    46.3 °F

  • Highest 17 March, 2026

    80.7 °F

Climate (2021–Present)

Alturas (9.3 miles)

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  • Average Low 2021–2026

    33.5 °F

  • Average 2021–2026

    49.6 °F

  • Average High 2021–2026

    64.8 °F
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