Golden Gate Canyon State Park Weather Forecast

    • 57
    • 78

    Slight Chance Thunderstorms

    • 55
    • 74

    Rain Showers Likely

    • 57
    • 75

    Rain Showers Likely

    • 53
    • 73

    Thunderstorms Likely

    • 50
    • 71

    Thunderstorms Likely

    • 51
    • 71

    Chance Thunderstorms

Today 21 Aug 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 chance of Thunderstorms in the afternoon. Highs 68 to 78. Chance of precipitation 30 percent.

Tonight 21 Aug South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and Wes

Mostly clear. Lows 44 to 54.

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Golden Gate Canyon State Park Temperature Statistics

August Temperature

Boulder Municipal Airport (16.2 miles)

  • Lowest 5 August, 2026

    50 °F

  • Average August

    76.2 °F

  • Highest 2 August, 2026

    104 °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

    66.3 °F
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