Crystal Lake Weather Forecast

    • 32
    • 56

    Mostly Sunny

    • 30
    • 58

    Mostly Sunny

    • 29
    • 58

    Mostly Sunny

    • 30
    • 59

    Mostly Sunny

    • 30
    • 58

    Mostly Sunny

    • 31
    • 56

    Partly Sunny

    • 35
    • 53

    Chance Rain Showers

Today 9 Dec Burney Basin / Eastern Shasta County

Mostly sunny. In the Valleys, patchy fog early in the morning. Haze in the morning. Areas of fog and freezing fog late in the Morning, patchy fog early in the morning. Haze in the morning. Areas of fog and freezing fog late in the morning. At higher Elevations, haze in the morning. Highs 52 to 58. Light Winds.

Tonight 9 Dec Burney Basin / Eastern Shasta County

Mostly clear. Patchy frost after midnight. Haze after midnight. Areas of frost and patchy fog late in the night. Lows 29 to 44. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Crystal Lake Temperature Statistics

December Temperature

Mount Shasta (47.2 miles)

  • Lowest 1 December, 2025

    27 °F

  • Average December

    40.2 °F

  • Highest 6 December, 2025

    57 °F

Climate (2020–Present)

Mount Shasta (47.2 miles)

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  • Average Low 2020–2025

    39.5 °F

  • Average 2020–2025

    52.3 °F

  • Average High 2020–2025

    65.5 °F
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