Altona Weather Forecast

    • 27
    • 44

    Increasing Clouds

    • 27
    • 47

    Chance Snow

    • 34
    • 55

    Partly Sunny

    • 36
    • 54

    Mostly Cloudy

    • 36
    • 56

    Partly Sunny

    • 33
    • 55

    Partly Sunny

Today 29 Jan Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly sunny. Highs in the mid 40s.

Tonight 29 Jan Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly cloudy. Slight chance of snow Showers in the Evening, then a chance of snow Showers after midnight. Lows in the mid to upper 20s. Chance of snow 30 percent.

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  • Temperature Real-Time

Altona Temperature Statistics

January Temperature

Vance Brand Airport (6.2 miles)

  • Lowest 21 January, 2025

    -13.9 °F

  • Average January

    25.2 °F

  • Highest 16 January, 2025

    60.1 °F

Climate (2020–Present)

Vance Brand Airport (6.2 miles)

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  • Average Low 2020–2025

    37.4 °F

  • Average 2020–2025

    52.2 °F

  • Average High 2020–2025

    67.6 °F
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