Crystal Lake Weather Forecast

    • 69
    • 88

    Rain Showers Likely

    • 59
    • 81

    Partly Sunny

    • 63
    • 78

    Mostly Cloudy

    • 64
    • 80

    Rain Showers Likely

    • 63
    • 75

    Rain Showers Likely

    • 62
    • 73

    Chance Rain Showers

Today 17 Sep Frederick

Mostly sunny with a slight chance of Showers in the Morning, then mostly cloudy with Showers likely with a chance of Thunderstorms in the afternoon. Highs in the upper 80s. Except in the lower 80s at the higher Elevations. Light and variable Winds, becoming west around 5 Mph in the afternoon. Chance of rain 60 percent.

Tonight 17 Sep Frederick

Mostly cloudy in the Evening, then becoming partly cloudy. A slight chance of Thunderstorms in the evening. A chance of Showers. Lows in the upper 60s. West Winds around 5 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Crystal Lake Temperature Statistics

September Temperature

Winchester Regional (9.9 miles)

  • Lowest 7 September, 2026

    53.6 °F

  • Average September

    72.4 °F

  • Highest 1 September, 2026

    91.4 °F

Climate (2021–2026)

Winchester Regional (9.9 miles)

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  • Average Low 2021–2026

    44.4 °F

  • Average 2021–2026

    54.4 °F

  • Average High 2021–2026

    64.4 °F
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