Boulder Weather Forecast

    • 49
    • 73

    Slight Chance Thunderstorms

    • 55
    • 79

    Mostly Sunny

    • 56
    • 79

    Slight Chance Thunderstorms

    • 59
    • 82

    Slight Chance Thunderstorms

    • 58
    • 85

    Slight Chance Thunderstorms

    • 59
    • 87

    Partly Sunny

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

Partly cloudy towards Sunrise then becoming mostly cloudy. A 20 percent chance of Thunderstorms in the late morning and afternoon. Highs in the lower 70s. North Winds 10 to 15 Mph with Gusts to around 25 Mph in the afternoon.

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

Mostly cloudy in the evening then clearing. Lows near 50.

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  • Temperature Forecast NOAA

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Boulder Temperature Statistics

August Temperature

Boulder Municipal Airport (2.5 miles)

  • Lowest 12 August, 2018

    55.4 °F

  • Average August

    72.6 °F

  • Highest 4 August, 2018

    95 °F

Climate (2010–Present)

Boulder Municipal Airport (2.5 miles)

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  • Average Low 2010–Present

    40.8 °F

  • Average 2010–Present

    53.1 °F

  • Average High 2010–Present

    65.4 °F
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