Crystal Lake Weather Forecast

    • 52
    • 68

    Partly Sunny

    • 52
    • 69

    Sunny

    • 51
    • 68

    Mostly Sunny

    • 49
    • 67

    Mostly Cloudy

    • 48
    • 59

    Mostly Cloudy

    • 45
    • 53

    Chance Rain Showers

Today 25 Oct Eastern San Gabriel Mountains

Sunny. Highs from the upper 60s and 70s at low Elevations to the 50s at high Elevations.

Tonight 25 Oct Eastern San Gabriel Mountains

Partly cloudy. Lows in the mid 40s to mid 50s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Crystal Lake Temperature Statistics

October Temperature

Brackett Field Airport (15.5 miles)

  • Lowest 13 October, 2026

    51.8 °F

  • Average October

    78.2 °F

  • Highest 2 October, 2026

    102.2 °F

Climate (2021–2026)

Brackett Field Airport (15.5 miles)

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  • Average Low 2021–2026

    56.3 °F

  • Average 2021–2026

    68.2 °F

  • Average High 2021–2026

    76.1 °F
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