South Boulder Weather Forecast

    • 49
    • 68

    Mostly Sunny

    • 48
    • 76

    Chance Rain Showers

    • 40
    • 61

    Chance Rain Showers

    • 43
    • 62

    Mostly Sunny

    • 43
    • 63

    Mostly Sunny

    • 48
    • 71

    Mostly Sunny

    • 41
    • 70

    Chance Rain/Snow

Today 14 Oct Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly sunny. Highs 67 to 73.

Tonight 14 Oct Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly clear. Lows 43 to 49.

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South Boulder Temperature Statistics

October Temperature

Boulder Municipal Airport (4.3 miles)

  • Lowest 6 October, 2025

    41 °F

  • Average October

    59.3 °F

  • Highest 3 October, 2025

    86 °F

Climate (2020–Present)

Boulder Municipal Airport (4.3 miles)

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  • Average Low 2020–2025

    40.4 °F

  • Average 2020–2025

    52.5 °F

  • Average High 2020–2025

    64.9 °F
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