Central Boulder Weather Forecast

    • 60
    • 87

    Slight Chance Thunderstorms

    • 60
    • 89

    Mostly Sunny

    • 63
    • 91

    Partly Sunny

    • 65
    • 89

    Slight Chance Thunderstorms

    • 61
    • 86

    Chance Thunderstorms

    • 62
    • 87

    Chance Thunderstorms

Today 2 Sep Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Mostly sunny. Highs 84 to 90. South Winds 10 to 15 Mph with Gusts up to 20 Mph in the afternoon.

Tonight 2 Sep Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County

Partly cloudy. Slight chance of Thunderstorms in the evening. Lows in the mid 50s to lower 60s. Chance of precipitation 20 percent.

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Central Boulder Temperature Statistics

September Temperature

Boulder Municipal Airport (2.5 miles)

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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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