Union Square Weather Forecast

    • 45
    • 71

    Becoming Sunny

    • 41
    • 72

    Mostly Sunny

    • 35
    • 60

    Mostly Sunny

    • 38
    • 63

    Mostly Sunny

    • 30
    • 58

    Partly Sunny

    • 35
    • 59

    Chance Rain/Snow

    • 27
    • 49

    Chance Snow

Today 1 Dec Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Partly cloudy. Highs 68 to 76. West Winds 10 to 15 Mph.

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Union Square Temperature Statistics

December Temperature

Broomfield / Jeffco (12.4 miles)

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  • Average December

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Climate (2010–Present)

Broomfield / Jeffco (12.4 miles)

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  • Average Low 2010–Present

    41.4 °F
  • Average 2010–Present

    50.8 °F
  • Average High 2010–Present

    65.2 °F
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