Ducasse Reservoir Weather Forecast

    • 42
    • 81

    Partly Sunny

    • 41
    • 80

    Mostly Sunny

    • 43
    • 83

    Mostly Sunny

    • 42
    • 81

    Partly Sunny

    • 37
    • 73

    Partly Sunny

    • 37
    • 74

    Partly Sunny

Today 21 Sep Lassen-Eastern Plumas-Eastern Sierra Counties

Mostly cloudy in the morning then becoming partly cloudy. Highs 75 to 85. Light Winds becoming east around 10 Mph in the afternoon.

Tonight 21 Sep Lassen-Eastern Plumas-Eastern Sierra Counties

Partly cloudy in the evening then clearing. Patchy smoke in the evening. Lows 41 to 51. West Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ducasse Reservoir Temperature Statistics

September Temperature

Alturas (44.7 miles)

  • Lowest 14 September, 2026

    28.7 °F

  • Average September

    58.3 °F

  • Highest 10 September, 2026

    85.6 °F

Climate (2021–2026)

Alturas (44.7 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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