Widow Mountain Weather Forecast

    • 53
    • 71

    Sunny

    • 54
    • 76

    Sunny

    • 57
    • 77

    Mostly Sunny

    • 58
    • 76

    Mostly Cloudy

    • 55
    • 69

    Partly Sunny

    • 53
    • 68

    Chance Rain Showers

Today 15 Sep Lassen-Eastern Plumas-Eastern Sierra Counties

Sunny. Highs 74 to 84. Light Winds becoming east around 10 Mph in the afternoon.

Tonight 15 Sep Lassen-Eastern Plumas-Eastern Sierra Counties

Clear. Lows 40 to 50. Light Winds.

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Widow Mountain Temperature Statistics

September Temperature

Alturas (44.1 miles)

  • Lowest 13 September, 2025

    41 °F

  • Average September

    66.5 °F

  • Highest 1 September, 2025

    91 °F

Climate (2020–Present)

Alturas (44.1 miles)

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  • Average Low 2020–2025

    32.9 °F

  • Average 2020–2025

    49.2 °F

  • Average High 2020–2025

    64.4 °F
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