Crystal Lake Weather Forecast

    • 74
    • 83

    Mostly Sunny

    • 79
    • 87

    Mostly Sunny

    • 77
    • 88

    Mostly Sunny

    • 75
    • 85

    Mostly Sunny

    • 74
    • 84

    Sunny

    • 72
    • 83

    Mostly Sunny

Today 22 Jul Eastern San Gabriel Mountains

Sunny. Highs from the mid 80s to mid 90s at low Elevations to the mid 70s to lower 80s at high Elevations. West Winds around 15 Mph in the afternoon.

Tonight 22 Jul Eastern San Gabriel Mountains

Mostly clear. Lows in the mid 60s to mid 70s except the lower to mid 60s Colder Valleys and Slopes. West Winds around 15 Mph in the evening.

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Crystal Lake Temperature Statistics

July Temperature

Brackett Field Airport (15.5 miles)

  • Lowest 3 July, 2026

    59 °F

  • Average July

    79.7 °F

  • Highest 15 July, 2026

    98.6 °F

Climate (2021–2026)

Brackett Field Airport (15.5 miles)

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  • Average Low 2021–2026

    56 °F

  • Average 2021–2026

    68 °F

  • Average High 2021–2026

    75.9 °F
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