Olathe Weather Forecast

    • 46
    • 83

    Mostly Sunny

    • 45
    • 83

    Mostly Sunny

    • 44
    • 76

    Mostly Sunny

    • 46
    • 79

    Mostly Sunny

    • 51
    • 82

    Mostly Cloudy

    • 51
    • 78

    Chance Thunderstorms

Today 15 Sep Central Gunnison and Uncompahgre River Basin

Mostly clear. Highs 75 to 85. Southeast Winds 10 to 15 Mph Late, becoming Light, Then, becoming northwest 10 to 15 Mph in the afternoon.

Tonight 15 Sep Central Gunnison and Uncompahgre River Basin

Partly cloudy. Lows 45 to 55. Southeast Winds 10 to 15 Mph.

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Olathe Temperature Statistics

September Temperature

Montrose, Montrose Regional Airport (8.1 miles)

  • Lowest 7 September, 2025

    48.9 °F

  • Average September

    67.9 °F

  • Highest 3 September, 2025

    89.1 °F

Climate (2020–Present)

Montrose, Montrose Regional Airport (8.1 miles)

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  • Average Low 2020–2025

    38.3 °F

  • Average 2020–2025

    51.5 °F

  • Average High 2020–2025

    65.2 °F
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