Longmont Weather Forecast

    • 29
    • 62

    Increasing Clouds

    • 20
    • 41

    Snow Likely

    • 17
    • 39

    Mostly Sunny

    • 26
    • 49

    Partly Sunny

    • 23
    • 49

    Mostly Cloudy

    • 21
    • 41

    Partly Sunny

    • 22
    • 44

    Mostly Sunny

Today 7 Dec Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly sunny. Highs in the lower to mid 60s. West Winds 15 to 25 Mph. Gusts up to 35 Mph in the afternoon.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Longmont Temperature Statistics

December Temperature

Vance Brand Airport (3.1 miles)

  • Lowest 2 December, 2023

    20.3 °F

  • Average December

    36.9 °F

  • Highest 4 December, 2023

    62.1 °F

Climate (2018–Present)

Vance Brand Airport (3.1 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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