Crystal Lake Weather Forecast

    • 46
    • 73

    Mostly Sunny

    • 51
    • 80

    Partly Sunny

    • 59
    • 85

    Partly Sunny

    • 52
    • 87

    Breezy

    • 52
    • 81

    Mostly Sunny

    • 57
    • 90

    Slight Chance Thunderstorms

Today 14 Jun Brown

Sunny. Highs in the lower 70s. Northwest Winds 10 to 15 Mph.

Tonight 14 Jun Brown

Mostly clear. Lows in the mid 40s. West Winds around 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Crystal Lake Temperature Statistics

June Temperature

Ainsworth Regional Airport (19.3 miles)

  • Lowest 1 June, 2026

    54.3 °F

  • Average June

    70.9 °F

  • Highest 9 June, 2026

    91 °F

Climate (2021–Present)

Ainsworth Regional Airport (19.3 miles)

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  • Average Low 2021–2026

    38 °F

  • Average 2021–2026

    49.9 °F

  • Average High 2021–2026

    62.5 °F
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