James Peak Weather Forecast

    • 37
    • 51

    Increasing Clouds

    • 31
    • 46

    Snow Showers Likely

    • 29
    • 37

    Snow Showers Likely

    • 30
    • 39

    Slight Chance Thunderstorms

    • 33
    • 45

    Partly Sunny

    • 36
    • 47

    Chance Rain/Snow

    • 35
    • 46

    Chance Thunderstorms

Today 15 Sep South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and Wes

Mostly sunny. Slight chance of rain Showers early in the afternoon. Slight chance of Thunderstorms late in the afternoon. Highs 55 to 65. West Winds 10 to 15 Mph in the afternoon. Chance of rain 20 percent.

Tonight 15 Sep South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and Wes

Partly cloudy. 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 6 September, 2025

    44.6 °F

  • Average September

    69.2 °F

  • Highest 10 September, 2025

    91.4 °F

Climate (2020–Present)

Boulder Municipal Airport (27.3 miles)

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  • Average Low 2020–2025

    40.4 °F

  • Average 2020–2025

    52.6 °F

  • Average High 2020–2025

    65 °F
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