Crystal Lake Weather Forecast

    • 54
    • 82

    Rain Showers

    • 39
    • 76

    Rain Showers Likely

    • 34
    • 50

    Rain Showers Likely

    • 34
    • 56

    Mostly Cloudy

    • 41
    • 65

    Mostly Cloudy

    • 43
    • 67

    Chance Rain Showers

    • 47
    • 73

    Chance Rain Showers

Today 16 May Brown

Mostly sunny. Near steady temperature around 80. East Winds 15 to 20 Mph.

Tonight 16 May Brown

Showers likely. A chance of Thunderstorms. Some Thunderstorms may be severe in the evening. Lows in the lower 50s. East Winds 10 to 20 Mph. Chance of precipitation 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Crystal Lake Temperature Statistics

May Temperature

Ainsworth Regional Airport (19.3 miles)

  • Lowest 1 May, 2026

    30.9 °F

  • Average May

    56.7 °F

  • Highest 11 May, 2026

    88 °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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