Deep Lake Weather Forecast

    • 57
    • 75

    Increasing Clouds

    • 55
    • 77

    Chance Thunderstorms

    • 53
    • 75

    Partly Sunny

    • 51
    • 74

    Mostly Sunny

    • 51
    • 75

    Mostly Sunny

    • 52
    • 75

    Mostly Sunny

    • 54
    • 77

    Mostly Sunny

Today 24 Jul Gallatin and Madison County Mountains and Centennial Mountains

Warmer, sunny. Near steady temperature around 80. Southwest Winds 10 to 20 Mph with Gusts to around 35 Mph.

Tonight 24 Jul Gallatin and Madison County Mountains and Centennial Mountains

Mostly cloudy with a 20 percent chance of Thunderstorms early in the Evening, then mostly cloudy in the late evening and overnight. Lows 56 to 66. South Winds 5 to 15 Mph. Gusts up to 35 Mph decreasing to 25 Mph after midnight.

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Deep Lake Temperature Statistics

July Temperature

Ennis - Big Sky Airport (28 miles)

  • Lowest 1 July, 2026

    41 °F

  • Average July

    68.1 °F

  • Highest 12 July, 2026

    98.6 °F

Climate (2021–2026)

Ennis - Big Sky Airport (28 miles)

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  • Average Low 2021–2026

    32 °F

  • Average 2021–2026

    44.4 °F

  • Average High 2021–2026

    56.3 °F
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