Crystal Lake Weather Forecast

    • 32
    • 53

    Chance Rain Showers

    • 32
    • 41

    Chance Rain Showers

    • 34
    • 46

    Chance Rain Showers

    • 37
    • 54

    Sunny

    • 36
    • 54

    Partly Sunny

    • 34
    • 53

    Partly Sunny

Today 14 Sep Gallatin and Madison County Mountains and Centennial Mountains

Sunny in the morning then becoming partly cloudy. Highs 60 to 70. Southwest Winds 5 to 15 Mph.

Tonight 14 Sep Gallatin and Madison County Mountains and Centennial Mountains

Mostly cloudy. Chance of rain Showers and slight chance of Thunderstorms in the Evening, then chance of rain Showers after midnight. Lows 35 to 40. South Winds 5 to 15 Mph. Chance of precipitation 40 percent.

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  • Temperature Real-Time

Crystal Lake Temperature Statistics

September Temperature

Dillon, Dillon Airport (30.4 miles)

  • Lowest 5 September, 2025

    42.1 °F

  • Average September

    62.8 °F

  • Highest 2 September, 2025

    89.1 °F

Climate (2020–Present)

Dillon, Dillon Airport (30.4 miles)

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  • Average Low 2020–2025

    30.7 °F

  • Average 2020–2025

    42.9 °F

  • Average High 2020–2025

    55.9 °F
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