Deep Lake Weather Forecast

    • 23
    • 32

    Partly Sunny

    • 23
    • 33

    Snow

    • 10
    • 26

    Snow Likely

    • 5
    • 18

    Snow Likely

    • 5
    • 15

    Chance Snow

    • 10
    • 16

    Chance Snow

Today 15 Feb Gallatin and Madison County Mountains and Centennial Mountains

Partly sunny. A 20 percent chance of snow in the afternoon. Highs 31 to 43. Southwest Winds 10 to 20 Mph with Gusts to around 45 Mph.

Tonight 15 Feb Gallatin and Madison County Mountains and Centennial Mountains

Mostly cloudy with a 20 percent chance of snow in the Evening, then partly cloudy after midnight. Lows 21 to 29. South Winds 10 to 15 Mph with Gusts to around 40 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Deep Lake Temperature Statistics

February Temperature

Ennis - Big Sky Airport (28 miles)

  • Lowest 10 February, 2026

    17.6 °F

  • Average February

    38.5 °F

  • Highest 5 February, 2026

    64.4 °F

Climate (2021–Present)

Ennis - Big Sky Airport (28 miles)

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  • Average Low 2021–2026

    31.9 °F

  • Average 2021–2026

    44.3 °F

  • Average High 2021–2026

    56.2 °F
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