James Peak Weather Forecast

    • 31
    • 46

    Rain/Snow

    • 29
    • 39

    Snow Showers

    • 30
    • 39

    Chance Thunderstorms

    • 33
    • 45

    Mostly Sunny

    • 36
    • 47

    Partly Sunny

    • 35
    • 46

    Slight Chance Thunderstorms

Today 16 Sep South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and Wes

Partly cloudy in the Morning, then rain Showers likely and chance of Thunderstorms in the afternoon. Highs 53 to 63. Chance of rain 70 percent.

Tonight 16 Sep South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and Wes

Rain Showers Likely, chance of Thunderstorms and snow Showers likely in the Evening, then a chance of rain and snow Showers after midnight. Little or no snow accumulation. Lows 29 to 39. Chance of precipitation 70 percent.

Graph Plots Open in Graphs

  • 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)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    40.4 °F

  • Average 2020–2025

    52.6 °F

  • Average High 2020–2025

    65 °F
Get WillyWeather+ to remove ads