Ottawa Weather Forecast

    • 56
    • 80

    Mostly Sunny

    • 62
    • 83

    Partly Sunny

    • 63
    • 84

    Partly Sunny

    • 63
    • 84

    Slight Chance Thunderstorms

    • 65
    • 85

    Mostly Sunny

    • 67
    • 87

    Slight Chance Thunderstorms

    • 69
    • 89

    Slight Chance Thunderstorms

Today 3 Aug Putnam

Mostly sunny. Near steady temperature in the upper 70s. East Winds around 10 Mph.

Tonight 3 Aug Putnam

Mostly clear. Lows in the mid 50s. East Winds 5 to 10 Mph.

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Ottawa Temperature Statistics

August Temperature

Findlay, Findlay Airport (19.3 miles)

  • Lowest 1 August, 2025

    59 °F
  • Average August

    66.6 °F
  • Highest 1 August, 2025

    73.9 °F

Climate (2020–Present)

Findlay, Findlay Airport (19.3 miles)

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  • Average Low 2020–2025

    45.1 °F
  • Average 2020–2025

    54.3 °F
  • Average High 2020–2025

    63.7 °F
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