St Mary's Weather Forecast

    • 54
    • 69

    Decreasing Clouds

    • 45
    • 67

    Chance Thunderstorms

    • 45
    • 59

    Chance Thunderstorms

    • 46
    • 63

    Mostly Sunny

    • 49
    • 64

    Mostly Sunny

    • 51
    • 66

    Mostly Sunny

Today 2 Aug South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and Wes

Mostly sunny. Highs 72 to 82.

Tonight 2 Aug South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and Wes

Partly cloudy. Lows 46 to 56.

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  • Temperature Real-Time

St Mary's Temperature Statistics

August Temperature

Boulder Municipal Airport (26.7 miles)

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  • Average August

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Climate (2021–2026)

Boulder Municipal Airport (26.7 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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