Ennis Weather Forecast

    • 46
    • 57

    Slight Chance Rain

    • 46
    • 53

    Chance Rain

    • 36
    • 50

    Chance Rain

    • 34
    • 54

    Mostly Cloudy

    • 34
    • 55

    Mostly Cloudy

    • 36
    • 53

    Mostly Cloudy

    • 32
    • 50

    Chance Rain

Today 10 Dec Madison River Valley

Windy, cloudy. Near steady temperature around 50. South Winds 15 to 30 Mph with Gusts to around 45 Mph.

Tonight 10 Dec Madison River Valley

Windy. Mostly cloudy. Lows 40 to 48. South Winds 15 to 30 Mph with Gusts to around 55 Mph.

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Ennis Temperature Statistics

December Temperature

Ennis - Big Sky Airport (6.2 miles)

  • Lowest 1 December, 2025

    5 °F
  • Average December

    31.7 °F
  • Highest 8 December, 2025

    46.4 °F

Climate (2020–Present)

Ennis - Big Sky Airport (6.2 miles)

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  • Average Low 2020–2025

    31.5 °F
  • Average 2020–2025

    43.9 °F
  • Average High 2020–2025

    55.7 °F
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