Ennis Lake Weather Forecast

    • 22
    • 39

    Mostly Cloudy

    • 25
    • 41

    Mostly Cloudy

    • 31
    • 44

    Mostly Cloudy

    • 32
    • 50

    Mostly Cloudy

    • 33
    • 52

    Mostly Cloudy

    • 26
    • 47

    Mostly Cloudy

Today 28 Jan Madison River Valley

Mostly cloudy. A 50 percent chance of snow late in the afternoon. Highs in the upper 30s. South Winds 5 to 15 Mph.

Tonight 28 Jan Madison River Valley

Mostly cloudy in the evening then becoming partly cloudy. Lows 17 to 23. South Winds 5 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ennis Lake Temperature Statistics

January Temperature

Ennis - Big Sky Airport (10.6 miles)

  • Lowest 23 January, 2026

    -5.8 °F

  • Average January

    28.9 °F

  • Highest 13 January, 2026

    53.6 °F

Climate (2021–Present)

Ennis - Big Sky Airport (10.6 miles)

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  • Average Low 2021–2026

    31.7 °F

  • Average 2021–2026

    44.1 °F

  • Average High 2021–2026

    56 °F
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