Central Boulder Weather Forecast

    • 63
    • 89

    Chance Thunderstorms

    • 66
    • 93

    Chance Thunderstorms

    • 61
    • 91

    Chance Thunderstorms

    • 59
    • 88

    Chance Thunderstorms

    • 59
    • 87

    Chance Thunderstorms

    • 61
    • 90

    Slight Chance Thunderstorms

    • 63
    • 92

    Slight Chance Thunderstorms

Today 22 Aug Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly cloudy. Chance of Thunderstorms late in the afternoon. Some Thunderstorms may produce heavy rainfall late in the afternoon. Highs 85 to 93. East Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of precipitation 30 percent.

Tonight 22 Aug Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly cloudy. Chance of Thunderstorms in the Evening, then a slight chance of Showers after midnight. Patchy fog towards Sunrise. Some Thunderstorms may produce heavy rainfall in the evening. Lows 59 to 65. South Winds 10 to 15 Mph with Gusts up to 25 Mph in the Evening, becoming light. Chance of rain 50 percent.

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Central Boulder Temperature Statistics

August Temperature

Boulder Municipal Airport (2.5 miles)

  • Lowest 5 August, 2026

    50 °F

  • Average August

    76.3 °F

  • Highest 2 August, 2026

    104 °F

Climate (2021–2026)

Boulder Municipal Airport (2.5 miles)

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  • Average Low 2021–2026

    41.3 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    66.4 °F
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