Ontario Weather Forecast

    • 63
    • 82

    Becoming Sunny

    • 68
    • 85

    Mostly Sunny

    • 68
    • 88

    Mostly Sunny

    • 59
    • 85

    Chance Thunderstorms

    • 57
    • 75

    Partly Sunny

    • 61
    • 78

    Chance Rain Showers

    • 60
    • 78

    Slight Chance Thunderstorms

Today 14 Aug Wayne

Sunny. Near steady Temperatures Ranging from the upper 70s along the lake Ontario shore to the lower 80s inland. North Winds 5 to 10 Mph.

Tonight 14 Aug Wayne

Mainly clear. Lows Ranging from around 60 inland to the mid 60s along the lake Ontario shore. Light Winds, becoming east 5 to 10 Mph.

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Ontario Temperature Statistics

August Temperature

Rochester, Greater Rochester International Airport (21.1 miles)

  • Lowest 2 August, 2025

    49.6 °F

  • Average August

    72.7 °F

  • Highest 10 August, 2025

    92.6 °F

Climate (2020–Present)

Rochester, Greater Rochester International Airport (21.1 miles)

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  • Average Low 2020–2025

    42.6 °F

  • Average 2020–2025

    51 °F

  • Average High 2020–2025

    59.6 °F
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