Ottawa Weather Forecast

    • 64
    • 90

    Chance Thunderstorms

    • 64
    • 88

    Rain Showers Likely

    • 61
    • 83

    Rain Showers Likely

    • 60
    • 81

    Chance Rain Showers

    • 64
    • 84

    Chance Thunderstorms

    • 63
    • 84

    Chance Thunderstorms

Today 16 Sep Franklin

Patchy fog this morning. Mostly sunny with a slight chance of Showers and Thunderstorms. Highs in the upper 80s. South Winds around 5 Mph. Chance of rain 20 percent.

Tonight 16 Sep Franklin

Mostly clear. A chance of Showers and Thunderstorms after midnight. Humid with Lows in the mid 60s. Southeast Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 40 percent.

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Ottawa Temperature Statistics

September Temperature

Olathe, New Century Aircenter (24.9 miles)

  • Lowest 6 September, 2025

    48 °F

  • Average September

    68.7 °F

  • Highest 12 September, 2025

    93.9 °F

Climate (2020–Present)

Olathe, New Century Aircenter (24.9 miles)

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  • Average Low 2020–2025

    46.6 °F

  • Average 2020–2025

    57 °F

  • Average High 2020–2025

    67.8 °F
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