Altona Weather Forecast

    • 39
    • 66

    Windy

    • 30
    • 54

    Chance Rain

    • 39
    • 56

    Partly Sunny

    • 38
    • 64

    Partly Sunny

    • 39
    • 64

    Partly Sunny

    • 40
    • 64

    Partly Sunny

Today 19 Dec Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Partly cloudy. Patchy blowing dust. Windy. Highs in the mid 60s to lower 70s. West Winds 10 to 20 Mph with Gusts up to 35 Mph, increasing to 20 to 30 Mph with Gusts up to 45 Mph in the afternoon.

Tonight 19 Dec Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Partly cloudy in the Evening, then becoming mostly cloudy. Patchy blowing dust through the night. Very windy. Lows 38 to 44. West Winds 25 to 35 Mph. Gusts up to 55 Mph, decreasing to 45 Mph after midnight.

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Altona Temperature Statistics

December Temperature

Vance Brand Airport (6.2 miles)

  • Lowest 17 December, 2025

    41.9 °F

  • Average December

    55.9 °F

  • Highest 17 December, 2025

    69.1 °F

Climate (2020–Present)

Vance Brand Airport (6.2 miles)

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  • Average Low 2020–2025

    38.2 °F

  • Average 2020–2025

    52.9 °F

  • Average High 2020–2025

    68.2 °F
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