Crystal Lake Weather Forecast

    • 39
    • 51

    Mostly Sunny

    • 43
    • 55

    Mostly Sunny

    • 36
    • 45

    Mostly Sunny

    • 41
    • 50

    Mostly Sunny

    • 46
    • 54

    Mostly Sunny

    • 45
    • 56

    Mostly Sunny

    • 46
    • 56

    Mostly Sunny

Today 1 Dec Eastern San Gabriel Mountains

Sunny. Highs from the upper 50s to mid 60s at low Elevations to the mid 40s to around 50 at high Elevations. Northeast Winds 15 to 25 Mph.

Tonight 1 Dec Eastern San Gabriel Mountains

Mostly clear. Lows in the 40s except the lower to mid 30s Colder Valleys and Slopes.

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Crystal Lake Temperature Statistics

December Temperature

Brackett Field Airport (15.5 miles)

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Climate (2020–Present)

Brackett Field Airport (15.5 miles)

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  • Average Low 2020–2025

    55.5 °F

  • Average 2020–2025

    67.6 °F

  • Average High 2020–2025

    75.5 °F
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