Crystal Lake Weather Forecast

    • 45
    • 84

    Mostly Sunny

    • 50
    • 90

    Partly Sunny

    • 49
    • 88

    Partly Sunny

    • 46
    • 83

    Mostly Sunny

    • 41
    • 71

    Mostly Sunny

    • 42
    • 72

    Sunny

Today 8 Sep Burney Basin

Sunny, warmer. Highs 74 to 84. Light Winds.

Tonight 8 Sep Burney Basin

Mostly clear. Lows 42 to 52. Light Winds.

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Crystal Lake Temperature Statistics

September Temperature

Mount Shasta (47.2 miles)

  • Lowest 4 September, 2026

    33.7 °F

  • Average September

    52.9 °F

  • Highest 5 September, 2026

    71.7 °F

Climate (2021–2026)

Mount Shasta (47.2 miles)

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  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    52.4 °F

  • Average High 2021–2026

    65.7 °F
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