Colorado National Monument Weather Forecast

    • 58
    • 77

    Partly Sunny

    • 53
    • 77

    Slight Chance Thunderstorms

    • 52
    • 71

    Mostly Sunny

    • 55
    • 73

    Mostly Sunny

    • 57
    • 76

    Partly Sunny

    • 57
    • 76

    Mostly Sunny

    • 56
    • 76

    Slight Chance Thunderstorms

Today 15 Sep Uncompahgre Plateau/Dallas Divide

Sunny. Highs 65 to 75. West Winds 10 to 15 Mph in the afternoon.

Tonight 15 Sep Uncompahgre Plateau/Dallas Divide

Partly cloudy. Lows in the 40s.

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Colorado National Monument Temperature Statistics

September Temperature

Grand Junction Regional Airport (9.9 miles)

  • Lowest 13 September, 2025

    48 °F

  • Average September

    72.6 °F

  • Highest 2 September, 2025

    93 °F

Climate (2020–Present)

Grand Junction Regional Airport (9.9 miles)

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  • Average Low 2020–2025

    43 °F

  • Average 2020–2025

    55.5 °F

  • Average High 2020–2025

    68.4 °F
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