Golden Gate Canyon State Park Weather Forecast

    • 54
    • 74

    Chance Rain Showers

    • 54
    • 72

    Chance Thunderstorms

    • 55
    • 72

    Chance Thunderstorms

    • 52
    • 72

    Rain Showers Likely

    • 52
    • 70

    Chance Thunderstorms

    • 53
    • 71

    Chance Thunderstorms

Today 4 Sep South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and Wes

Mostly sunny in the Morning, then mostly cloudy with a slight chance of Thunderstorms early in the afternoon. Mostly cloudy with a chance of Thunderstorms late in the afternoon. Highs 64 to 74. Chance of precipitation 30 percent.

Tonight 4 Sep South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and Wes

Mostly cloudy with a chance of Showers and slight chance of Thunderstorms in the Evening, then partly cloudy after midnight. Lows 41 to 51. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Golden Gate Canyon State Park Temperature Statistics

September Temperature

Boulder Municipal Airport (16.2 miles)

  • Lowest 1 September, 2026

    60.8 °F

  • Average September

    74.3 °F

  • Highest 2 September, 2026

    89.6 °F

Climate (2021–2026)

Boulder Municipal Airport (16.2 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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