Big Sky Weather Forecast

    • 26
    • 56

    Mostly Sunny

    • 34
    • 60

    Mostly Sunny

    • 30
    • 59

    Mostly Sunny

    • 33
    • 62

    Mostly Sunny

    • 31
    • 63

    Mostly Sunny

    • 31
    • 61

    Mostly Sunny

Today 16 Dec Estancia Valley

Sunny. Highs in the upper 50s. Northwest Winds 15 to 20 Mph.

Tonight 16 Dec Estancia Valley

Mostly clear. Cold with Lows in the mid 20s.

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Big Sky Temperature Statistics

December Temperature

Moriarty Municipal Airport (12.4 miles)

  • Lowest 5 December, 2025

    17.2 °F

  • Average December

    38.7 °F

  • Highest 11 December, 2025

    65.7 °F

Climate (2020–Present)

Moriarty Municipal Airport (12.4 miles)

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  • Average Low 2020–2025

    34.7 °F

  • Average 2020–2025

    53 °F

  • Average High 2020–2025

    69.2 °F
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