Niwot Weather Forecast

    • 26
    • 49

    Slight Chance Freezing Drizzle

    • 23
    • 36

    Cloudy

    • 22
    • 39

    Mostly Cloudy

    • 24
    • 46

    Mostly Sunny

    • 24
    • 50

    Mostly Sunny

    • 29
    • 57

    Partly Sunny

Today 11 Dec Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Partly cloudy late in the Morning, then becoming mostly cloudy. Highs in the upper 40s.

Tonight 11 Dec Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly cloudy. Slight chance of rain and snow in the Evening, then a slight chance of light freezing drizzle after midnight. Lows in the upper 20s. Chance of precipitation 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Niwot Temperature Statistics

December Temperature

Vance Brand Airport (3.7 miles)

  • Lowest 9 December, 2023

    16.2 °F

  • Average December

    38.1 °F

  • Highest 6 December, 2023

    66.2 °F

Climate (2018–Present)

Vance Brand Airport (3.7 miles)

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  • Average Low 2018–2023

    37.4 °F

  • Average 2018–2023

    52.1 °F

  • Average High 2018–2023

    67.7 °F
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