Big Sky Weather Forecast

    • 26
    • 65

    Becoming Sunny

    • 32
    • 63

    Mostly Sunny

    • 35
    • 70

    Mostly Sunny

    • 35
    • 72

    Partly Sunny

    • 35
    • 69

    Mostly Sunny

    • 33
    • 69

    Mostly Sunny

Today 31 Oct Estancia Valley

Partly cloudy. Highs in the upper 60s. West Winds 15 to 20 Mph.

Tonight 31 Oct Estancia Valley

Cold. Mostly clear. Lows in the upper 20s. Northwest Winds around 15 Mph in the evening.

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Big Sky Temperature Statistics

October Temperature

Moriarty Municipal Airport (12.4 miles)

  • Lowest 29 October, 2025

    17.2 °F
  • Average October

    55.4 °F
  • Highest 3 October, 2025

    81.1 °F

Climate (2020–Present)

Moriarty Municipal Airport (12.4 miles)

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  • Average Low 2020–2025

    34.6 °F
  • Average 2020–2025

    52.9 °F
  • Average High 2020–2025

    69.2 °F
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