Mount Vernon Weather Forecast

    • 34
    • 42

    Rain/Snow

    • 25
    • 45

    Rain/Snow Likely

    • 31
    • 52

    Mostly Sunny

    • 41
    • 68

    Partly Sunny

    • 38
    • 64

    Mostly Sunny

    • 41
    • 65

    Mostly Sunny

Today 14 Oct Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below

Partly cloudy with a 20 percent chance of Showers. Highs 57 to 67.

Tonight 14 Oct Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below

Rain and snow in the Evening, then a chance of rain and snow after midnight. Little or no snow accumulation. Lows 29 to 35.

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Mount Vernon Temperature Statistics

October Temperature

Broomfield / Jeffco (15.5 miles)

  • Lowest 2 October, 2026

    46.4 °F

  • Average October

    66 °F

  • Highest 5 October, 2026

    89.6 °F

Climate (2021–2026)

Broomfield / Jeffco (15.5 miles)

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  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    51.8 °F

  • Average High 2021–2026

    66.1 °F
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