Deep Lake Weather Forecast

    • 39
    • 57

    Chance Thunderstorms

    • 45
    • 62

    Mostly Sunny

    • 50
    • 67

    Mostly Sunny

    • 50
    • 73

    Mostly Sunny

    • 48
    • 74

    Mostly Sunny

    • 42
    • 65

    Slight Chance Thunderstorms

    • 46
    • 62

    Mostly Sunny

Today 5 Jul Gallatin and Madison County Mountains and Centennial Mountains

Mostly cloudy with a 50 percent chance of Thunderstorms. Near steady temperature in the lower 60s. Southwest Winds 10 to 15 Mph.

Tonight 5 Jul Gallatin and Madison County Mountains and Centennial Mountains

Mostly clear. A 20 percent chance of Thunderstorms in the evening. Lows 40 to 45. Northwest Winds up to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Deep Lake Temperature Statistics

July Temperature

Ennis - Big Sky Airport (28 miles)

  • Lowest 1 July, 2025

    51.8 °F

  • Average July

    69.5 °F

  • Highest 1 July, 2025

    89.6 °F

Climate (2020–Present)

Ennis - Big Sky Airport (28 miles)

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  • Average Low 2020–2025

    31.3 °F

  • Average 2020–2025

    43.7 °F

  • Average High 2020–2025

    55.7 °F
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