Lower Arapahoe Weather Forecast

    • 54
    • 86

    Partly Sunny

    • 55
    • 86

    Mostly Sunny

    • 53
    • 76

    Chance Thunderstorms

    • 48
    • 81

    Rain Showers Likely

    • 37
    • 62

    Rain Showers

    • 41
    • 64

    Chance Thunderstorms

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

Mostly cloudy in the Morning, then becoming partly cloudy. Highs 82 to 88. West Winds 10 to 20 Mph with Gusts up to 35 Mph.

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

Mostly clear. Lows 46 to 52. Northwest Winds 10 to 15 Mph with Gusts up to 35 Mph in the Evening, becoming light.

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Lower Arapahoe Temperature Statistics

May Temperature

Boulder Municipal Airport (3.7 miles)

  • Lowest 1 May, 2026

    32 °F

  • Average May

    56 °F

  • Highest 11 May, 2026

    87.8 °F

Climate (2021–Present)

Boulder Municipal Airport (3.7 miles)

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  • Average Low 2021–2026

    41.2 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    66.1 °F
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