Green Mountain Weather Forecast

    • 11
    • 30

    Snow

    • 19
    • 39

    Partly Sunny

    • 21
    • 39

    Partly Sunny

    • 24
    • 43

    Chance Rain/Snow

    • 25
    • 43

    Partly Sunny

    • 27
    • 49

    Partly Sunny

Today 3 Dec Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Snow until late Afternoon, then a chance of snow late in the afternoon. New snow accumulation of 3 to 5 Inches. Highs in the lower 30s.

Tonight 3 Dec Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly cloudy with a chance of snow in the Evening, then partly cloudy after midnight. Lows 9 to 13. Chance of snow 30 percent.

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Green Mountain Temperature Statistics

December Temperature

Broomfield / Jeffco (14.9 miles)

  • Lowest 1 December, 2025

    14 °F

  • Average December

    25.9 °F

  • Highest 1 December, 2025

    44.6 °F

Climate (2020–Present)

Broomfield / Jeffco (14.9 miles)

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  • Average Low 2020–2025

    41.4 °F

  • Average 2020–2025

    50.7 °F

  • Average High 2020–2025

    64.9 °F
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