Longmont Weather Forecast

    • 40
    • 71

    Breezy

    • 43
    • 74

    Partly Sunny

    • 28
    • 72

    Snow Likely

    • 17
    • 39

    Chance Snow

    • 35
    • 54

    Mostly Cloudy

    • 42
    • 73

    Partly Sunny

    • 44
    • 79

    Partly Sunny

Today 12 Mar Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Partly cloudy. Patchy blowing dust. Windy. Highs near 70. West Winds 20 to 30 Mph with Gusts up to 50 Mph.

Tonight 12 Mar Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Partly cloudy. Lows 40 to 46. West Winds 15 to 25 Mph. Gusts up to 45 Mph, decreasing to 30 Mph after midnight.

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Longmont Temperature Statistics

March Temperature

Vance Brand Airport (3.1 miles)

  • Lowest 7 March, 2026

    19 °F

  • Average March

    46 °F

  • Highest 9 March, 2026

    72.7 °F

Climate (2021–Present)

Vance Brand Airport (3.1 miles)

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  • Average Low 2021–2026

    38.4 °F

  • Average 2021–2026

    53.2 °F

  • Average High 2021–2026

    68.6 °F
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