James Peak Weather Forecast

    • 34
    • 54

    Becoming Sunny

    • 39
    • 58

    Mostly Sunny

    • 38
    • 58

    Breezy

    • 39
    • 51

    Chance Thunderstorms

    • 36
    • 52

    Chance Thunderstorms

    • 35
    • 49

    Slight Chance Thunderstorms

Today 9 Sep South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and Wes

Mostly sunny. Highs 61 to 71. West Winds 10 to 15 Mph with Gusts up to 20 Mph in the afternoon.

Tonight 9 Sep South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and Wes

Mostly clear. Lows 35 to 45.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

James Peak Temperature Statistics

September Temperature

Boulder Municipal Airport (27.3 miles)

  • Lowest 3 September, 2026

    59 °F

  • Average September

    76.2 °F

  • Highest 4 September, 2026

    95 °F

Climate (2021–2026)

Boulder Municipal Airport (27.3 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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