Lower Arapahoe Weather Forecast

    • 66
    • 96

    Mostly Sunny

    • 63
    • 95

    Mostly Sunny

    • 64
    • 93

    Mostly Sunny

    • 65
    • 94

    Mostly Sunny

    • 65
    • 92

    Partly Sunny

    • 66
    • 93

    Chance Thunderstorms

    • 65
    • 93

    Chance Thunderstorms

Today 13 Jul Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly sunny. Highs in the mid to upper 90s. Southeast Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 13 Jul Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly clear. Lows 61 to 67. Southeast Winds 15 to 25 Mph with Gusts up to 35 Mph.

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Lower Arapahoe Temperature Statistics

July Temperature

Boulder Municipal Airport (3.7 miles)

  • Lowest 1 July, 2026

    55.4 °F

  • Average July

    75.5 °F

  • Highest 5 July, 2026

    96.8 °F

Climate (2021–2026)

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

    66.2 °F
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