Boulder Weather Forecast

    • 56
    • 85

    Becoming Sunny

    • 57
    • 85

    Mostly Sunny

    • 57
    • 82

    Partly Sunny

    • 53
    • 77

    Slight Chance Rain Showers

    • 50
    • 73

    Chance Rain Showers

    • 49
    • 67

    Chance Rain Showers

Today 8 Oct Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly sunny. Highs in the lower to mid 80s.

Tonight 8 Oct Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Partly cloudy in the evening then clearing. Lows 50 to 56.

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Boulder Temperature Statistics

October Temperature

Boulder Municipal Airport (2.5 miles)

  • Lowest 2 October, 2026

    46.4 °F

  • Average October

    65.7 °F

  • Highest 5 October, 2026

    91.4 °F

Climate (2021–2026)

Boulder Municipal Airport (2.5 miles)

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  • Average Low 2021–2026

    41.4 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    66.4 °F
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