Ottawa Weather Forecast

    • 67
    • 93

    Rain Showers

    • 62
    • 83

    Chance Rain Showers

    • 67
    • 88

    Mostly Sunny

    • 64
    • 88

    Chance Thunderstorms

    • 65
    • 86

    Chance Rain Showers

    • 61
    • 87

    Chance Thunderstorms

Today 9 Sep Franklin

Partly sunny. A chance of Showers and Thunderstorms in the Morning, then Showers and Thunderstorms likely in the afternoon. Humid with Highs in the mid 90s. Temperature falling into the mid 80s in the afternoon. Southeast Winds around 5 Mph, becoming northeast in the afternoon. Chance of rain 70 percent.

Tonight 9 Sep Franklin

Mostly clear. Lows in the upper 70s. South Winds 5 to 10 Mph with Gusts up to 20 Mph.

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Ottawa Temperature Statistics

September Temperature

Olathe, New Century Aircenter (24.9 miles)

  • Lowest 1 September, 2026

    68.6 °F

  • Average September

    86 °F

  • Highest 5 September, 2026

    101.6 °F

Climate (2021–2026)

Olathe, New Century Aircenter (24.9 miles)

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  • Average Low 2021–2026

    47.1 °F

  • Average 2021–2026

    57.8 °F

  • Average High 2021–2026

    68.8 °F
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