Big Sage Reservoir Weather Forecast

    • 28
    • 53

    Partly Sunny

    • 38
    • 61

    Increasing Clouds

    • 40
    • 70

    Mostly Sunny

    • 42
    • 76

    Mostly Sunny

    • 43
    • 74

    Mostly Sunny

    • 44
    • 75

    Partly Sunny

    • 46
    • 77

    Partly Sunny

Today 14 Mar Modoc County

Partly cloudy early this afternoon then clearing. Highs in the lower 50s to lower 60s. Northwest Winds 10 to 20 Mph.

Tonight 14 Mar Modoc County

Mostly clear early this evening then becoming partly cloudy. Lows around 30. Northwest Winds 10 to 15 Mph with Gusts to around 30 Mph shifting to the northeast around 5 Mph after midnight.

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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

    21.9 °F

  • Average March

    44 °F

  • Highest 12 March, 2026

    68 °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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