Altona Weather Forecast

    • 49
    • 88

    Partly Sunny

    • 44
    • 65

    Mostly Cloudy

    • 49
    • 73

    Partly Sunny

    • 53
    • 80

    Partly Sunny

    • 51
    • 85

    Mostly Sunny

    • 40
    • 74

    Partly Sunny

    • 39
    • 64

    Partly Sunny

Today 21 Mar Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Partly cloudy. Highs near 90. West Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 21 Mar Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the upper 40s. West Winds 10 to 15 Mph with Gusts up to 30 Mph in the Evening, becoming light.

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Altona Temperature Statistics

March Temperature

Vance Brand Airport (6.2 miles)

  • Lowest 7 March, 2026

    19 °F

  • Average March

    48.2 °F

  • Highest 19 March, 2026

    84.9 °F

Climate (2021–Present)

Vance Brand Airport (6.2 miles)

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  • Average Low 2021–2026

    38.5 °F

  • Average 2021–2026

    53.3 °F

  • Average High 2021–2026

    68.7 °F
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