Niwot Weather Forecast

    • 18
    • 34

    Increasing Clouds

    • 22
    • 40

    Partly Sunny

    • 21
    • 46

    Chance Rain/Snow

    • 22
    • 43

    Partly Sunny

    • 27
    • 48

    Partly Sunny

    • 35
    • 53

    Partly Sunny

Today 4 Dec Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Patchy fog in the morning. Mostly sunny. Highs 34 to 40.

Tonight 4 Dec Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly clear in the Evening, then becoming mostly cloudy. Lows 18 to 22. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

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Niwot Temperature Statistics

December Temperature

Vance Brand Airport (3.7 miles)

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  • Average December

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Climate (2020–Present)

Vance Brand Airport (3.7 miles)

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  • Average Low 2020–2025

    38 °F

  • Average 2020–2025

    52.8 °F

  • Average High 2020–2025

    68.1 °F
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