Canandaigua Weather Forecast

    • 68
    • 83

    Rain Showers

    • 61
    • 79

    Slight Chance Thunderstorms

    • 61
    • 80

    Partly Sunny

    • 56
    • 77

    Rain Showers Likely

    • 54
    • 75

    Slight Chance Thunderstorms

    • 57
    • 77

    Partly Sunny

Today 16 Aug Ontario

Partly sunny Early, then becoming mostly cloudy. A 40 percent chance of Showers and Thunderstorms. Near steady Temperatures Ranging from the lower 70s on the Hilltops to the upper 70s across the lower Elevations. South Winds 10 to 15 Mph.

Tonight 16 Aug Ontario

Cloudy. A chance of Showers and Thunderstorms in the Evening, then Showers likely overnight. Warmer and muggy with Lows in the upper 60s. South Winds 10 to 15 Mph, becoming light. Chance of rain 60 percent.

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Canandaigua Temperature Statistics

August Temperature

Penn Yan, Penn Yan Airport (20.5 miles)

  • Lowest 4 August, 2026

    59 °F

  • Average August

    72.1 °F

  • Highest 5 August, 2026

    88 °F

Climate (2021–2026)

Penn Yan, Penn Yan Airport (20.5 miles)

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  • Average Low 2021–2026

    41.8 °F

  • Average 2021–2026

    50.4 °F

  • Average High 2021–2026

    59 °F
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