Altona Weather Forecast

    • 57
    • 85

    Mostly Cloudy

    • 55
    • 80

    Partly Sunny

    • 53
    • 82

    Mostly Sunny

    • 57
    • 83

    Mostly Sunny

    • 56
    • 82

    Partly Sunny

    • 52
    • 75

    Chance Rain Showers

    • 49
    • 69

    Chance Rain Showers

Today 6 Oct Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Partly cloudy with a 20 percent chance of Showers. Highs 59 to 67.

Tonight 6 Oct Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly cloudy in the evening then clearing. Lows 49 to 57.

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Altona Temperature Statistics

October Temperature

Vance Brand Airport (6.2 miles)

  • Lowest 2 October, 2026

    41.4 °F

  • Average October

    61 °F

  • Highest 3 October, 2026

    84.9 °F

Climate (2021–2026)

Vance Brand Airport (6.2 miles)

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  • Average Low 2021–2026

    38.5 °F

  • Average 2021–2026

    53.4 °F

  • Average High 2021–2026

    68.8 °F
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