Lower Arapahoe Weather Forecast

    • 55
    • 83

    Mostly Sunny

    • 52
    • 85

    Mostly Sunny

    • 47
    • 88

    Partly Sunny

    • 42
    • 67

    Slight Chance Rain

    • 49
    • 76

    Partly Sunny

    • 53
    • 81

    Partly Sunny

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

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

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

Mostly clear. Lows 49 to 55. West Winds 10 to 15 Mph with Gusts up to 20 Mph in the Evening, becoming light.

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Lower Arapahoe Temperature Statistics

March Temperature

Boulder Municipal Airport (3.7 miles)

  • Lowest 16 March, 2026

    21.2 °F

  • Average March

    48 °F

  • Highest 2 March, 2026

    71.6 °F

Climate (2021–Present)

Boulder Municipal Airport (3.7 miles)

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  • Average Low 2021–2026

    41 °F

  • Average 2021–2026

    53.3 °F

  • Average High 2021–2026

    65.8 °F
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