Green Tank Reservoir Weather Forecast

    • 42
    • 66

    Decreasing Clouds

    • 39
    • 67

    Mostly Cloudy

    • 38
    • 68

    Mostly Sunny

    • 40
    • 71

    Mostly Sunny

    • 41
    • 73

    Mostly Sunny

    • 38
    • 69

    Partly Sunny

Today 26 Sep Modoc County

Mostly cloudy. Highs in the mid 60s to lower 70s. Northeast Winds 5 to 10 Mph shifting to the southeast early in the Afternoon, then shifting to the southwest late in the afternoon.

Tonight 26 Sep Modoc County

Mostly cloudy. Lows in the lower to mid 40s. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Green Tank Reservoir Temperature Statistics

September Temperature

Alturas (24.2 miles)

  • Lowest 14 September, 2026

    28.7 °F

  • Average September

    58.8 °F

  • Highest 10 September, 2026

    85.6 °F

Climate (2021–2026)

Alturas (24.2 miles)

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  • Average Low 2021–2026

    33.2 °F

  • Average 2021–2026

    49.1 °F

  • Average High 2021–2026

    64.7 °F
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