Ottawa Weather Forecast

    • 58
    • 87

    Mostly Sunny

    • 60
    • 87

    Partly Sunny

    • 60
    • 86

    Mostly Cloudy

    • 64
    • 86

    Chance Rain Showers

    • 63
    • 78

    Chance Rain Showers

    • 59
    • 80

    Chance Rain Showers

Today 18 Sep Putnam

Sunny. Near steady temperature in the upper 80s. North Winds around 5 Mph.

Tonight 18 Sep Putnam

Clear. Lows in the upper 50s. Northeast Winds around 5 Mph, becoming southeast after midnight.

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Ottawa Temperature Statistics

September Temperature

Findlay, Findlay Airport (19.3 miles)

  • Lowest 8 September, 2025

    41 °F

  • Average September

    64.5 °F

  • Highest 15 September, 2025

    86 °F

Climate (2020–Present)

Findlay, Findlay Airport (19.3 miles)

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  • Average Low 2020–2025

    45 °F

  • Average 2020–2025

    54.3 °F

  • Average High 2020–2025

    63.6 °F
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