Altona Weather Forecast

    • 59
    • 84

    Chance Thunderstorms

    • 57
    • 81

    Rain Showers Likely

    • 60
    • 85

    Chance Thunderstorms

    • 63
    • 92

    Slight Chance Thunderstorms

    • 64
    • 92

    Chance Rain Showers

    • 59
    • 87

    Chance Thunderstorms

Today 25 Aug Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Partly cloudy in the Morning, then mostly cloudy with a chance of Thunderstorms in the afternoon. Highs 83 to 89. Chance of precipitation 50 percent.

Tonight 25 Aug Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Partly cloudy. Chance of Thunderstorms in the evening. Lows 55 to 61. Chance of precipitation 30 percent.

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  • Temperature Real-Time

Altona Temperature Statistics

August Temperature

Vance Brand Airport (6.2 miles)

  • Lowest 5 August, 2026

    50.4 °F

  • Average August

    73.7 °F

  • Highest 3 August, 2026

    100.8 °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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