Baseline Sub Weather Forecast

    • 36
    • 59

    Breezy

    • 44
    • 56

    Partly Sunny

    • 35
    • 63

    Partly Sunny

    • 38
    • 57

    Partly Sunny

    • 30
    • 58

    Partly Sunny

    • 33
    • 60

    Partly Sunny

Today 9 Dec Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Partly cloudy. Highs near 60. West Winds 15 to 25 Mph with Gusts up to 50 Mph.

Tonight 9 Dec Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Partly cloudy. Lows in the lower to mid 30s. West Winds 10 to 20 Mph with Gusts up to 35 Mph in the Evening, becoming light.

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Baseline Sub Temperature Statistics

December Temperature

Boulder Municipal Airport (2.5 miles)

  • Lowest 4 December, 2025

    10.4 °F

  • Average December

    33.1 °F

  • Highest 2 December, 2025

    50 °F

Climate (2020–Present)

Boulder Municipal Airport (2.5 miles)

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  • Average Low 2020–2025

    40.5 °F

  • Average 2020–2025

    52.7 °F

  • Average High 2020–2025

    65.1 °F
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